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Q: How many unique 2 number combinations are there in the numbers 0 to 9?

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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.

There are 15 combinations.

There are 13,244 of them.

There are 24C12 = 24!/[12!*12!] = 2,704,156 combinations.

Number of 7 digit combinations out of the 10 one-digit numbers = 120.

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252 combinations, :)

Any 6 from 51 = 18,009,460 combinations

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.

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

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

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 infinitely many numbers and so infinitely many possible combinations.

If you only include unique answers you end up with the following 6 combinations:0088, 0808, 8008, 8800, 8080, and 0880

There are 12,033,222,880 of them.

12,108,327

9999

how many combinations of 4 numbers are there in 7 numbers

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