Prime Curios!: 54621

54621
(another Prime Pages' Curiosity)

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54621 is prime if 10^1, 10^2, 10^3, ..., or 10^9 is added to it. This is the smallest number with this property to form a chain of 9 consecutive primes of form 10^i + n, i = 1, 2,... 9. It is followed by 3726723, 5893321, 6379401, .... [Vrba]

Submitted: 2006-11-26 05:49:57; Last Modified: 2008-01-30 11:28:00.