This number is a prime.

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

+ A prime formed by simply removing the most AND least significant digits from the exponent of M38, i.e. 2^6972593-1 [Harrison]

(There is one curio for this number that has not yet been approved by an editor.)

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