Prime Curios!: 100

100
(another Prime Pages' Curiosity)

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100*2^213 - 1 is prime. Note that 213*2^100 - 1 is also prime. This is the smallest pair of three-digit numbers with such property. [Opao]

Submitted: 2004-01-03 11:07:34; Last Modified: 2008-01-30 11:28:00.