11059...09057 (64-digits)
This number is a prime.
1105 9201110878 7311112449 1116979311 1861771127 2193113049 6111309057
The smallest prime formed from the concatenation of n
consecutive n-digit Proth primes, i.e., {11059201,
11087873, 11112449, 11169793, 11186177, 11272193, 11304961,
11309057}, (case n=8). [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell