Prime Curios!: 39

39
(another Prime Pages' Curiosity)

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The least composite odd number that is the sum of the primes between its smallest and largest prime factors (39 = 3 * 13 = 3 + 5 + 7 + 11 + 13). [Rivera]

Submitted: 2000-06-16 11:04:02; Last Modified: 2009-02-26 19:51:37.