33589...51371 (33-digits)

This number is a prime.

335 8985246007 3422105074 9906451371

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The start of the largest known Cunningham chain of length 14 as of 2009: 335898524600734221050749906451370*2^n + 1 for n = 0 to 13. [Andersen]

Submitted: 2009-09-21 02:29:31; Last Modified: 2009-09-21 14:02:26.