29437

This number is a prime.

+ 29437 = (2*131)+(3*127)+...+(53*59), i.e., the first n primes placed in product pairs whereas the first factors are increasing and the second factors are decreasing, then added together. In this case, n=32. Can you find the next prime with this property? [Bergot]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell