11111119
This number is a prime.
Although the near-repdigit prime 11111119 does not appear in the largest known
Mersenne prime M51, its twin (11111117) does appear in M51 exactly once." [Harrison]
(There are 2 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell