MathDB
Primes and again primes

Source: Ireland 2004

January 2, 2007
number theoryprime numbers

Problem Statement

Determine all pairs of prime numbers (p,q)(p, q), with 2p,q<1002 \leq p, q < 100, such that p+6,p+10,q+4,q+10p+6, p+10, q+4, q+10 and p+q+1p+q+1 are all prime numbers.