4561

This number is a prime.

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The digits of 4561 (abcd) produce a distinct nine-digit product in the following expression: (a+b+c+d)(ab+cd)(a+bcd)(abc+d). [Meller]

Submitted: 2010-08-03 21:36:34;   Last Modified: 2010-10-25 12:13:36.
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