55558...50621 (680-digits)

This number is a prime.

Just showing those entries submitted by 'Broadhurst': (Click here to show all)

+ As of May 2001, the primitive part p of the Fibonacci number F4881 = 2*F1627*p is the largest prime for which all the factors of p2 - 1 have been discovered. [Broadhurst]

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