166

This number is a composite.

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166 is the smallest number such that the number and its reversal are both congruent to 1 mod p for the same set of some three distinct odd primes (166 = 661 = 1 mod (3, 5, 11)). [Thoms]

Submitted: 2001-09-13 15:18:51; Last Modified: 2008-01-30 17:28:00.