12457
This number is a prime.
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A prime in the decimal expansion of fifth root of 3, an expression of the first two odd primes, which is a truncation of another such prime 12457309. Note that these two primes both have prime digital sums, 19 and 31. [Post]
Submitted: 2009-03-28 04:34:35; Last Modified: 2009-03-28 17:45:41.
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