Discussion

If the sum of two prime numbers x and y is odd, then the product of x and y must be divisible by
(A)   2
(B)...
(C)...
(D)...
(E)...
(F)...
*This question is included in Nova Math - Problem Set F: Number Theory, question #18

The solution is

Posted: 10/11/2016 14:57
.
Posted: 10/11/2016 14:50
Reply: I got it .. Thank you
18/2
Posted: 10/11/2016 14:50
14/2*

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