5507
This number is a prime.
The smallest prime with Honaker-Smith number prime index. [Loungrides]
The smallest prime number for which the first ten digits of its square root are pandigital (74.20916385). [Gaydos]
The smallest Honaker prime that produces another Honaker prime (7285507) when concatenated to its prime index (728). [Gaydos]
The smallest prime whose period length (i.e., 2753) is prime containing all prime digits exactly once. [Gupta]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell