43
This number is a prime.
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437 = 271818611107 = (2 + 7 + 1 + 8 + 1 + 8 + 6 + 1 + 1 + 1 + 0 + 7)7. [Madachy]
Submitted: 2004-08-19 12:58:52; Last Modified: 2008-07-31 11:57:34.
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