77232917
This number is a prime.
Just showing those entries submitted by 'Harrison': (Click here to show all)
The sequence of digits '77232917' does not appear in the
Mersenne prime 2^77232917 - 1. [Harrison]
The Mersenne prime exponent '77232917' contains a
record-breaking eleven prime substrings when read
left-to-right, i.e., 2, 3, 7, 17, 23, 29, 2917, 7723,
23291, 32917, 7232917. [Harrison]
The largest known Mersenne prime exponent to comprise six
instances of a prime digit, i.e. 7, 7, 2, 3, 2, 7. [Harrison]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell