The number of combinations of 7 numbers from 10 is 10C7 = 10*9*8/(3*2*1) = 120
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.
1000
There are 125970 combinations and I am not stupid enough to try and list them!
15
10,000
575757
It is: 9C7 = 36
Through the magic of perms and coms the answer is 729
64
There are 252 combinations.
1,000. The list looks just like the counting numbers from 000 to 999 .
4!=4x3x2x1=24