86843...77761 (1068-digits)

This number is a prime.

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As of September 2001, let p = 109267227191*2500# + 10531091 and we get the largest known prime quadruplet {p, p + 2, p + 6, p + 8}. [Luhn]

Submitted: 2001-09-08 10:09:25; Last Modified: 2008-01-30 17:28:00.