Naučil se boš razcepljati števila na manjše dele in iskati,... Show more
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Updated Apr 10, 2026
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Razcep na prafaktorje, skupni večkratniki in delitelji
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Ključni pojmi, ki jih moraš poznati
Praštevilo ima samo dva delitelja - samega sebe in število 1. Zapomni si jih do 20: 2, 3, 5, 7, 11, 13, 17, 19. Število 2 je edino sodo praštevilo!
Sestavljeno število lahko razdeliš na več manjših delov. Na primer, 12 lahko razdeliš na 2 × 2 × 3. Prafaktor je praštevilo, ki natančno deli tvoje število.
Največji skupni delitelj (D) je največje število, ki deli obe tvoji števili. Potrebuješ ga za krajšanje ulomkov. Najmanjši skupni večkratnik (v) je najmanjše število, ki je večkratnik obeh tvojih števil - potrebuješ ga za seštevanje ulomkov.
💡 Nasvet: Število 1 ni ne praštevilo ne sestavljeno število. To je poseben primer!
Razcep števila na prafaktorje
Nariši navpično črto in število postavi na levo stran. Zdaj boš delil z najmanjšimi praštevili - začni z 2, potem 3, 5, 7...
Deli z istim praštevilom, dokler se da. Ko ne gre več, vzemi naslednje praštevilo. Ponavljaj, dokler na levi strani ne dobiš rezultat 1.
Na primer za število 36: deli z 2 (dobiš 18), spet z 2 (dobiš 9), potem z 3 (dobiš 3), še enkrat z 3 (dobiš 1). Torej 36 = 2² × 3².
🎯 Pomembno: Ne pozabi deliti do konca - dokler ne dobiš samih praštevil na desni strani!
Izračun največjega skupnega delitelja (D)
Najprej naredi razcep obeh števil na prafaktorje. Potem poišči skupne prafaktorje - tiste, ki se pojavijo v obeh razcepih.
Za vsak skupni prafaktor vzemi najmanjšo potenco (tistega z najmanj ponovitvami). Te prafaktorje zmnoži med seboj.
Če za 18 = 2 × 3² in 24 = 2³ × 3 iščeš D(18, 24), vzameš 2¹ (manjša potenca) in 3¹ (manjša potenca). Torej D(18, 24) = 2 × 3 = 6.
⚠️ Pazi: Če ni nič skupnega, je D = 1. Takim številom rečemo tuji števili.
Izračun najmanjšega skupnega večkratnika (v)
Spet začneš z razcepom obeh števil. Tokrat izpišeš vse različne prafaktorje, ki se pojavijo v kateremkoli razcepu.
Za vsak prafaktor vzameš največjo potenco (tistega z največ ponovitvami). Te prafaktorje zmnoži med seboj.
Za isti primer 18 = 2 × 3² in 24 = 2³ × 3 vzameš 2³ (večja potenca) in 3² (večja potenca). Torej v(18, 24) = 2³ × 3² = 8 × 9 = 72.
🔍 Preveri se: D(a, b) × v(a, b) = a × b. Za naš primer: 6 × 72 = 432 in 18 × 24 = 432. Deluje!
Rešeni primer korak za korakom
Poiščimo D(60, 84) in v(60, 84). Najprej razcep: 60 = 2² × 3 × 5 in 84 = 2² × 3 × 7.
Za največji skupni delitelj vzamemo skupne prafaktorje z najmanjšimi potencami. Skupna sta 2 in 3, oba z najmanjšo potenco 2² oziroma 3¹. Torej D(60, 84) = 2² × 3 = 12.
Za najmanjši skupni večkratnik vzamemo vse prafaktorje z največjimi potencami: 2², 3¹, 5¹, 7¹. Torej v(60, 84) = 2² × 3 × 5 × 7 = 420.
✨ Zapomniti: D je vedno manjši ali enak najmanjšemu številu, v pa večji ali enak največjemu številu.
Povzetek za test in koristni nasveti
Postopek za D: Naredi razcep → vzami skupne faktorje → vzami najmanjše potence → zmnoži. Postopek za v: Naredi razcep → vzami vse faktorje → vzami največje potence → zmnoži.
Zapomni si ta trik: pri D bereš "skupni" in "manjši", pri v pa "vsi" in "večji". To ti bo pomagalo, da ne boš zamenil postopkov.
Če ti na testu zmanjka časa, preveri rezultat z formulo D(a, b) × v(a, b) = a × b. Če se rezultata ujemata, imaš pravi odgovor!
🚀 Za uspeh: Naučit se moraš praštevila do 20 na pamet - to bo pospešilo tvoj razcep in prihranil čas na testu!
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Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Razcep na prafaktorje, skupni večkratniki in delitelji
Naučil se boš razcepljati števila na manjše dele in iskati, kaj imajo števila skupnega. To ti bo super pomagalo pri računanju z ulomki, ker boš lahko krajšal in združeval ulomke hitreje in lažje.
Ključni pojmi, ki jih moraš poznati
Praštevilo ima samo dva delitelja - samega sebe in število 1. Zapomni si jih do 20: 2, 3, 5, 7, 11, 13, 17, 19. Število 2 je edino sodo praštevilo!
Sestavljeno število lahko razdeliš na več manjših delov. Na primer, 12 lahko razdeliš na 2 × 2 × 3. Prafaktor je praštevilo, ki natančno deli tvoje število.
Največji skupni delitelj (D) je največje število, ki deli obe tvoji števili. Potrebuješ ga za krajšanje ulomkov. Najmanjši skupni večkratnik (v) je najmanjše število, ki je večkratnik obeh tvojih števil - potrebuješ ga za seštevanje ulomkov.
💡 Nasvet: Število 1 ni ne praštevilo ne sestavljeno število. To je poseben primer!
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Razcep števila na prafaktorje
Nariši navpično črto in število postavi na levo stran. Zdaj boš delil z najmanjšimi praštevili - začni z 2, potem 3, 5, 7...
Deli z istim praštevilom, dokler se da. Ko ne gre več, vzemi naslednje praštevilo. Ponavljaj, dokler na levi strani ne dobiš rezultat 1.
Na primer za število 36: deli z 2 (dobiš 18), spet z 2 (dobiš 9), potem z 3 (dobiš 3), še enkrat z 3 (dobiš 1). Torej 36 = 2² × 3².
🎯 Pomembno: Ne pozabi deliti do konca - dokler ne dobiš samih praštevil na desni strani!
Sign up to see the contentIt's free!
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Izračun največjega skupnega delitelja (D)
Najprej naredi razcep obeh števil na prafaktorje. Potem poišči skupne prafaktorje - tiste, ki se pojavijo v obeh razcepih.
Za vsak skupni prafaktor vzemi najmanjšo potenco (tistega z najmanj ponovitvami). Te prafaktorje zmnoži med seboj.
Če za 18 = 2 × 3² in 24 = 2³ × 3 iščeš D(18, 24), vzameš 2¹ (manjša potenca) in 3¹ (manjša potenca). Torej D(18, 24) = 2 × 3 = 6.
⚠️ Pazi: Če ni nič skupnega, je D = 1. Takim številom rečemo tuji števili.
Sign up to see the contentIt's free!
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Izračun najmanjšega skupnega večkratnika (v)
Spet začneš z razcepom obeh števil. Tokrat izpišeš vse različne prafaktorje, ki se pojavijo v kateremkoli razcepu.
Za vsak prafaktor vzameš največjo potenco (tistega z največ ponovitvami). Te prafaktorje zmnoži med seboj.
Za isti primer 18 = 2 × 3² in 24 = 2³ × 3 vzameš 2³ (večja potenca) in 3² (večja potenca). Torej v(18, 24) = 2³ × 3² = 8 × 9 = 72.
🔍 Preveri se: D(a, b) × v(a, b) = a × b. Za naš primer: 6 × 72 = 432 in 18 × 24 = 432. Deluje!
Sign up to see the contentIt's free!
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Rešeni primer korak za korakom
Poiščimo D(60, 84) in v(60, 84). Najprej razcep: 60 = 2² × 3 × 5 in 84 = 2² × 3 × 7.
Za največji skupni delitelj vzamemo skupne prafaktorje z najmanjšimi potencami. Skupna sta 2 in 3, oba z najmanjšo potenco 2² oziroma 3¹. Torej D(60, 84) = 2² × 3 = 12.
Za najmanjši skupni večkratnik vzamemo vse prafaktorje z največjimi potencami: 2², 3¹, 5¹, 7¹. Torej v(60, 84) = 2² × 3 × 5 × 7 = 420.
✨ Zapomniti: D je vedno manjši ali enak najmanjšemu številu, v pa večji ali enak največjemu številu.
Sign up to see the contentIt's free!
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Povzetek za test in koristni nasveti
Postopek za D: Naredi razcep → vzami skupne faktorje → vzami najmanjše potence → zmnoži. Postopek za v: Naredi razcep → vzami vse faktorje → vzami največje potence → zmnoži.
Zapomni si ta trik: pri D bereš "skupni" in "manjši", pri v pa "vsi" in "večji". To ti bo pomagalo, da ne boš zamenil postopkov.
Če ti na testu zmanjka časa, preveri rezultat z formulo D(a, b) × v(a, b) = a × b. Če se rezultata ujemata, imaš pravi odgovor!
🚀 Za uspeh: Naučit se moraš praštevila do 20 na pamet - to bo pospešilo tvoj razcep in prihranil čas na testu!
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user