1549

This number is a prime.

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1549 is the smallest number whose square can be split into two primes in three different ways: 1549^2 = 2399401 -> 2399 and 401 are primes, 23 and 99401 are primes, and 2 and 399401 are primes. [Meller]

Submitted: 2012-05-26 16:01:05; Last Modified: 2019-07-11 12:37:01.