# Math Help - Help with number Theory HW

1. ## Help with number Theory HW

Prove or disprove the following.

There are infinitely many prime numbers expressible in the form of n^3+1 where n is a positive integer.

2. Originally Posted by JCIR
Prove or disprove the following.

There are infinitely many prime numbers expressible in the form of n^3+1 where n is a positive integer.
Sum of two cubes identity.

3. ## Thanks

Thanks for the hint but I really do not know what the sum of two 2 cubes identity is.

4. Originally Posted by JCIR
Thanks for the hint but I really do not know what the sum of two 2 cubes identity is.
$x^3+y^3 = (x+y)(x^2-xy+y^2)$

5. ## Number Theory

I did not know that was called like that Thanks.