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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Can somebody tell me what are non trivial factors ?

Thanks

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,709

Hi;

When you factor an integer n it will always have 4 trivial factors (-1,1,-n,n) all the other factors are non trivial.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Ok, and what is the purpose of it ?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,709

Factoring numbers? Which?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

The trivial and non trivial factors...

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,709

Hi;

For one thing factoring helps reduce fractions. It is a basic skill that comes up in simplification of complicated expressions. Since math began thousands of years ago people have been fascinated by prime numbers. Since composites are not prime and are made up of prime factors the natural question is what are those factors. You find them by factoring.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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