22222...22229 (176-digits)
This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).
222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222229
The smallest near-repdigit prime P greater than a googol
found in the sequence 9, 29, 229, 2229, 22229, 222229,
2222229, etc . Curiously, P is expressible as R176 + 7,
where R stands for the n-th repdigit. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell