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eandre01
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eandre01
Hey Guys,

I appreciate the forum; this has been a big help, thus far; I was wondering if someone can clarify this Prime Number Statement for the "GMAT Club Math Book"

A number "n>1" is prime if it cannot be written as a product of two factors "a" and "b" , both of which are greater than
1: n = ab. An example would be nice.

Thanks

Can you write 20 as the product of factors both of which are greater than 1?
Yes. 2*10 or 4*5

How about 21?
Yes. 3*7

How about 23?
??
??
No? If no, then 23 is prime!

Basically, a prime number has NO factors other than 1 and itself so you CANNOT write it as product of 2 factors other than as 1*Number itself.
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