7777776666655554443321
This number is a prime.
77 7777666665 5554443321
Starting from 1 you can count one 2, two 3's, three 4's,
four 5's, five 6's, and six 7's. [Silva]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
77 7777666665 5554443321
Starting from 1 you can count one 2, two 3's, three 4's,
four 5's, five 6's, and six 7's. [Silva]