216
Just one. unless you count 123456 different from 132456 then there are 46656 * * * * * But you cannot count 123456 as different from 132456 since it is NOT a different combination. And the question was about combinations.
Assuming no repeated digits, lowest first, 20; in any order 120; Allowing repeated digits: 216
6 different combinations can be made with 3 items
There are 9C3 = 84 combinations.
216
Just one. unless you count 123456 different from 132456 then there are 46656 * * * * * But you cannot count 123456 as different from 132456 since it is NOT a different combination. And the question was about combinations.
If no repetition, 6! ie 720; if repetition allowed, 66 ie 46656.
Just the one. The order of the numbers does not matter in a combination so that 123456 is the same combination as 245136.
123456-123457-123458-123459-123467-123468-123469-123567-123568-123569-124567-124568-124569-134567-134568-134569-234567-234568-234569-you get the drift
Assuming no repeated digits, lowest first, 20; in any order 120; Allowing repeated digits: 216
It depends on whether the order of the numbers is important or not. For example, if 123456 is seen as a different code to 213456 then there are many more possible solutions.If the order is unimportant, the number of possible combinations is equal tobinomial coefficient(15,6) = 5005If the order is important, then the number of possible permutations is equal to15! = ~1.3x1012
6 different combinations can be made with 3 items
There are 9C3 = 84 combinations.
If repeats are allowed than an infinite number of combinations is possible.
10,000.
#123456