1231
This number is a prime.
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The last two prime days of the year, 12/29 and the New
Year's Eve prime, 12/31, form a 'twimirp' (a twin prime pair
whose members are emirps). Submitted on 12/31. [Green]
Submitted: 2009-12-31 05:45:02; Last Modified: 2009-12-31 14:23:54.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell