3289
This number is a composite.
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(3289, 9823) is the only pair of 4-digit “2-cinehps” numbers, i.e., a pair of sphenic numbers whose the prime factors of it and its reversal are double-digit primes, 3289=11*13*23, and 9823=11*19*47. [Loungrides]
Submitted: 2014-04-27 19:07:05; Last Modified: 2018-05-25 19:35:03.
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