prime number?

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prime number?

Postby John » Sat Dec 14, 2013 12:46 pm

What is prime number?
John Abraham
John
 
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Re: prime number?

Postby John » Sat Dec 14, 2013 12:46 pm

A prime number is a positive integer that has exactly two positive integer factors, 1 and itself. For example, if we list the factors of 28, we have 1, 2, 4, 7, 14, and 28. That's six factors. If we list the factors of 29, we only have 1 and 29. That's two factors. So we say that 29 is a prime number, but 28 isn't.
John Abraham
John
 
Posts: 419
Joined: Wed Jun 05, 2013 9:15 pm


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