66666...99999 (3133-digits)
This number is a prime.
A prime made up of 6s, 9s, and the Brilliant palindrome 1794971 = 1031*1741 in the center. [Earls]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
A prime made up of 6s, 9s, and the Brilliant palindrome 1794971 = 1031*1741 in the center. [Earls]