2421

This number is a composite.

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2421 = prime(2)^2 + prime(4)^4 + prime(2)^2 + prime(1)^1. Note that 2421 is the smallest number with this property. [Firoozbakht]

Submitted: 2004-08-17 14:24:17; Last Modified: 2008-01-30 17:28:00.