Prime Curios!: 2222

2222
(another Prime Pages' Curiosity)

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2222 = 2¹ + 2² + 2³ + 2⁵ + 2⁷ + 2¹¹. Note that the number of 2s in the equation equals the larger of the prime exponents, which form a prime sequence, with the exception of '1.' [Gevisier]

Submitted: 2001-04-04 16:43:09; Last Modified: 2008-01-30 11:28:00.