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April 16, 2014

April 16, 2014

Posted by **Lee** on Friday, May 6, 2011 at 8:46am.

I attempted the problem but I'm not sure if it is right. 89,561 is a prime number and so is 2. So is the answer 2?

- MATH! -
**Mgraph**, Friday, May 6, 2011 at 9:12amYes

- MATH! -
**Reiny**, Friday, May 6, 2011 at 9:48amThe logic behind this is very interesting.

All prime numbers except the number 2 are odd

the sum of any tow odd numbers is even.

Since 89563 is odd, it must have been the sum of an even and an odd.

So it had to be 2 and 89561

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