Prime Curios!: 37634

37634
(another Prime Pages' Curiosity)

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((4² - 2)² - 2)² - 2 = 37634 is the fourth term of the Lucas-Lehmer sequence and equal to 2*31*607. Curiously, the numbers M(2), M(31), and M(607) are all prime. [Wesolowski]

Submitted: 2009-07-06 07:22:08; Last Modified: 2010-01-03 10:30:52.