# How many 3-digit number combinations can you make with using odd numbers

How many 3 digit combinations can you make with odd numbers repeating

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If the numbers repeat twice, there are five combinations (111, 333, 555, 777, and 999). If the numbers only repeat once, there are sixty combinations (113, 131, 311, 115, 151, 511, etc).

Posted on Mar 18, 2014

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