50350...93599 (42-digits)

This number is a prime.

50 3509521523 5415475575 6356957157 7587593599

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The first century (6th century) that forms a prime by concatenating all primes of the interval, i.e., 100*n < p < 100*(n+1). [Gallardo]

Submitted: 2003-03-26 13:51:36; Last Modified: 2008-06-28 17:28:00.