55555...55551 (609-digits)
This number is a prime.
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The third and largest known prime of the form (5)w1. The only others have w = 11 and w = 12.
Submitted: 2004-05-12 07:23:50; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell