251

This number is a prime.

Single Curio View:   (Seek other curios for this number)
Puzzle Sequence: 7, 19, 79, 491, 2423, ... . Coauthor of Prime Curios!, G. L. Honaker, Jr., estimates an IQ of 251 or greater is required to determine the next term. Email him for answer and explanation.

Submitted: 2018-03-10 13:33:58;   Last Modified: 2018-12-22 22:15:28.
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