Prime Curios!: 15

15
(another Prime Pages' Curiosity)

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(F₀¹⁵ + F₁¹⁵ + F₂¹⁵ + F₃¹⁵ + F₄¹⁵) and (F₀¹⁵ + F₁¹⁵ + F₂¹⁵ + F₃¹⁵ + F₄¹⁵ + 6) are sexy primes. Note that the first five Fermat numbers are all prime. [Wesolowski]

Submitted: 2007-10-23 19:16:08; Last Modified: 2008-01-30 11:28:00.