7927
This number is a prime.
The Earth would just fit through a 7927-mile diameter hoop. [Punches]
P=2n²-Q, where P is any prime and Q is any isolated prime is true for the first one thousand odd primes, 7927 being the
largest. [Homewood]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell