210
5040 numbers can be made.
-- If the same digit may be repeated, then 64 can be made. -- If the same digit may not be repeated, then 24 can be made.
24
1,956 different numbers can be made from 6 digits. You can calculate this by using the permutation function in a summation function, like this: Σ6k=1 6Pk = 6P1+6P2+...+6P5+6P6 What this does is calculate how many 1 digit numbers you can make from 6 digits, then how many 2 digit numbers can be made from 6 digits and adds the amounts together, then calculates how many 3 digit numbers can be made and adds that on as well etc.
a lot
2
210
5040 numbers can be made.
9
You can make 4*3*2/2 = 12 numbers.
If you can repeat a digit, there are 27. If you can't repeat a digit, there are only 6.
-- If the same digit may be repeated, then 64 can be made. -- If the same digit may not be repeated, then 24 can be made.
120 5-digit numbers can be made with the numbers 12345.
It is: 9C7 = 36
66
10,000