There are 480,700 combinations and I am not going to even try to list them!
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Well honey, there are 480,700 combinations of 7 numbers out of 25. And listing them all out would take longer than watching paint dry. So, good luck with that!
24C7 = 24!/((24-7)!7!) = 346,104.
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
You can make 5 combinations of 1 number, 10 combinations of 2 numbers, 10 combinations of 3 numbers, 5 combinations of 4 numbers, and 1 combinations of 5 number. 31 in all.
56 combinations. :)
7