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Forum: enzocreti 2020-10-27, 13:01
Replies: 10
Views: 900
Posted By enzocreti
a difficult problem

Let be N a nonnegative integer.

I search integers N such that

N+20=s^2*p and N+19=q^2*(2*p+1), where s and q are integers>1 and p is a prime>2 and (2p+1) is a prime as well.
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