10223...99999 (42-digits)
This number is a prime.
10 2233355555 6666667777 7778888888 8999999999
The smallest prime containing one 0, one 1, two 2s, three 3s, five 5s, six 6s, seven 7s, eight 8s, and nine 9s. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell