7429
This number is a composite.
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The only 4-digit 2-sphenic number whose absolute difference
between any two of its digits is prime, (7429 = 17*19*23).
Note that its prime factors are successive primes. [Loungrides]
Submitted: 2018-05-11 12:12:38; Last Modified: 2018-12-11 21:33:15.
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