2981997480
This number is a composite.
Single Curio View: (Seek other curios for this number)
The first seven cyclotomic polynomials n - 1,
n + 1, n2 + n + 1,
n2 + 1, n4 +
n3 + n2 + n + 1,
n2 - n + 1 and n6 +
n5 + n4 +
n3 + n2 + n + 1
evaluate to prime numbers when n
= 2981997480, and for no smaller positive integer n. [Hartley]
Submitted: 2006-11-28 02:53:51; Last Modified: 2008-01-30 17:28:00.
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