37

This number is a prime.

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2^37 + 3^31 + 5^29 + 7^23 + 11^19 + 13^17 + 17^13 + 19^11 + 23^7 + 29^5 + 31^3 + 37^2 is prime. (Note the bases increase through the first dozen primes while the exponents decrease.) [Patterson]

Submitted: 2004-05-04 18:11:35; Last Modified: 2008-01-30 17:28:00.