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Q: How many possibly combinations are there using 9 numbers without using the same number in the order twice?

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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.

252 combinations, :)

There are a huge number of combinations of 5 numbers when using the numbers 0 through 10. There are 10 to the 5th power combinations of these numbers.

There are 35C4 = 35*34*33*32/(4*3*2*1) = 52,360 combinations.

There are 8,592,039,666 combinations of 6 numbers out of 138 numbers, like the numbers from 1 to 138.

7

If the numbers can be repeated and the numbers are 0-9 then there are 1000 different combinations.

14 * * * * * Wrong! There are 15. 4 combinations of 1 number, 6 combinations of 2 number, 4 combinations of 3 numbers, and 1 combination of 4 numbers.

If you can repeat the numbers within the combination there are 10,000 different combinations. If you cannot repeat the numbers within the combination, there are 5040 different combinations.

There is 1 combination of all ten numbers, 10 combinations of one number and of nine numbers, 45 combinations of two or eight numbers, 120 combinations of three or seven numbers, 210 combinations of four or six numbers and 252 combinations of five numbers. That is 1023 = 210 - 1 in total.

Could you generate a complete set of 6 number combinations from 45 numbers ?

just intrested in the number combinations * * * * * Number of combinations = 56C6 = 56*55*54*53*52*51/(6*5*4*3*2*1) = 32,468,436

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