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Old 2013-01-07, 02:24   #1
davar55
 
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May 2004
New York City

423310 Posts
Default Multiply Pandigital 2

What is the smallest positive integer n such that
both 2^n and 3^n are each singly pandigital, i.e.
contain all ten digits at least once? What about
doubly pandigital, i.e. contain each of all ten digits
at least twice? Care to try for three?

(Based on the "Multiply Pandigital" thread.)
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