461
This number is a prime.
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461 is the only known prime such that the average number of distinct prime factors for positive integers up to itself is an integer. [Honaker]
Submitted: 2018-12-22 01:16:50; Last Modified: 2018-12-22 01:19:07.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell