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Combination codes are actually permutations and notcombinations. The number of codes depends on how long (how many digits) the code is and that is not specified in the question. Also, the number of codes depends on whether or not the digits may be repeated - again, not specified in the question.

There are 24 permutations that use each of the numbers once in a 4-digit code.

There are infinitely many codes in which the numbers can be used repeatedly, each an infinite number of times!

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โˆ™ 2014-11-01 17:51:02
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โˆ™ 2014-10-18 19:40:53

Combination codes are actually permutations and notcombinations. The number of codes depends on how long (how many digits) the code is and that is not specified in the question. Also, the number of codes depends on whether or not the digits may be repeated - again, not specified in the question.

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โˆ™ 2014-11-01 17:51:02

There are 24 permutations that use each of the numbers once in a 4-digit code.

There are infinitely many codes in which the numbers can be used repeatedly, each an infinite number of times!

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