199
This number is a prime.
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Adding it to 210n provides the smallest 8, 9, and 10 primes in arithmetic progression.
Submitted: 1999-09-02 23:40:00; Last Modified: 2008-03-03 16:00:12.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell