16

This number is a composite.

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The first string of 16 numbers with prime factorizations such that their numbers of divisors are equal most likely includes a number congruent to 2¹⁴ modulo 2¹⁵. Why? [Merickel]

Submitted: 2014-10-28 18:25:06; Last Modified: 2020-06-14 21:04:45.