There are 504 such numbers.
If repetition is allowed . . . . . 343 If repetition is not allowed . . . . . 210
64 if repetition is allowed.24 if repetition is not allowed.
15 of them.
There are 5*5*5 = 125 such numbers.
There are 504 such numbers.
If repetition is allowed . . . . . 343 If repetition is not allowed . . . . . 210
64 if repetition is allowed.24 if repetition is not allowed.
15 of them.
There are 5*5*5 = 125 such numbers.
Six (6)
There are 600 such numbers.
There are 2000 such numbers.
I take it that you want to make three digits numbers with 8,7,3, and 6 without repetition. The first digit cane be selected from among 4 digits, the second from 3 digits, the third digit from 2, hence the number of three digit numbers that can be formed without repetition is 4 x 3 x 2 = 24
There are 7,290 different 4-digit numbers that can be formed from the digits 1-9 without repetition.
if the repetition is allowed the there is 6*6*6 possible ways = 216
It is 415968.