Best Answer

Just the one. The order of the numbers does not matter in a combination so that 123456 is the same combination as 245136.

Q: How many 6 digit combinations can be made from numbers 1 2 3 4 5 6?

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There are 38760 combinations.

The answer is 10C4 = 10!/[4!*6!] = 210

If there are no restrictions on duplicated numbers or other patterns of numbers then there are 10 ways of selecting the first digit and also 10 ways of selecting the second digit. The number of combinations is therefore 10 x 10 = 100.

5

45.

Related questions

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

There are 38760 combinations.

The answer will depend on how many digits there are in each of the 30 numbers. If the 30 numbers are all 6-digit numbers then the answer is NONE! If the 30 numbers are the first 30 counting numbers then there are 126 combinations of five 1-digit numbers, 1764 combinations of three 1-digit numbers and one 2-digit number, and 1710 combinations of one 1-digit number and two 2-digit numbers. That makes a total of 3600 5-digit combinations.

120 combinations using each digit once per combination. There are 625 combinations if you can repeat the digits.

It is: 9C7 = 36

66

15

6 ways: 931,913,139,193,391,319

10,000

10 Combinations (if order doesn't matter). 3,628,800 Possiblilities (if order matters).

There are 1140 five digit combinations between numbers 1 and 20.

The answer is 10C4 = 10!/[4!*6!] = 210