71784986521
This number is a prime.
Prime basenumber p of a palindromic heptagonal of length 23 {p(5p - 3)/2 = 12882710724442701728821}. [De Geest]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
Prime basenumber p of a palindromic heptagonal of length 23 {p(5p - 3)/2 = 12882710724442701728821}. [De Geest]