This number is a composite.

Just showing those entries submitted by 'Gaydos': (Click here to show all)

+ 1000 is the second cube that is the sum of two consecutive Sophie Germain primes (491 + 509). Is there a larger cube with this property? [Gaydos]

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