22059819805104914321
This number is a prime.
2205981980 5104914321
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Prime basenumber p of a palindromic heptagonal of length 40
{p(5p - 3)/2 = 1216589124584247550110557424854219856121}. [De Geest]
Submitted: 2008-01-24 01:24:05; Last Modified: 2008-01-30 17:28:00.
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