5232869

This number is a prime.

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The second smallest prime p (the first one is 79) such that when multiplied with p-1 (5232868 * 5232869 = 27382912738292) the result is a near-tautonymic number, i.e., in this case a concatenation of two successive numbers 2738291 and 2738292 in ascending order. Note that the first halve 2738291 is prime as well. [De Geest]

Submitted: 2003-11-13 20:01:30; Last Modified: 2008-01-30 17:28:00.