This number is a prime.

                                                                1 6058314729

+ The smallest pandigital prime p formed from the concatenation of a Honaker prime H and its its prime index π(H), i.e., {160583, 14729}. Curiously, p can also be expressed as the sum of two squares: (117723^2 + 46900^2). [Bajpai]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell