7159
This number is a prime.
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The largest 4-digit distinct-odd-digit prime, concatenated from two double-digit primes, i.e., 71, 59. The four smaller are 1753, 1759, 1973 and 3719. [Loungrides]
Submitted: 2016-02-08 19:21:05; Last Modified: 2020-07-07 14:30:23.
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