### Possible Answer

Enter a number with two or more digits to generate its 4-digit combinations. Enter a number with 4 digits to obtain all its permutations. - read more

Best Answer: the previous answers assume that 1,2,3,4 is different than 4,3,2,1 these are permutations. 1,2,3,4 and 4,3,2,1 count as 1 combination or 2 permutations. 1234,1243,1324,1342,1423,1432, 2134,2143,2314,2341,2413,2431, 3124,3142,3214,3241,3412,3421, 4123,4132,4213,4231,4312 ... - read more

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