Difference between revisions of "1991 AHSME Problems/Problem 26"
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Revision as of 22:53, 18 February 2012
An -digit positive integer is cute if its digits are an arrangement of the set and its first digits form an integer that is divisible by , for . For example, is a cute -digit integer because divides , divides , and divides . Howmany cute -digit integers are there?