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Number combinations

Number combinations
by sims on 01/01/03 at 21:32:01

If I had to pick a 4 number combination  eg/ 2657  using the numbers 0 thru 9, how many different combinations would there be?

Is there a formula to use? Software ?  I would like to know.


Re: Number combinations
by Robert Fogt on 01/02/03 at 04:28:13

With your specific case, just normal counting will reach every possible combination. 0000 to 9999 for a total of 10,000 different possible combinations.

If I remember correctly, the formula is


Where x is the number of digits, and y is the number of locations.

In your case, there are 10 possible digits (0 - 9) and 4 possible locations.
10[sup]4[/sup] = 10,000

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