It must end with a zero, since that's the only even digit.
236789
18 of them.
75431
Each of the 3 digits in a number can be any one of the four allowed.Total number of possibilities = (4 x 4 x 4) = 64numbers.
501396
236789
18 of them.
501396
256
75431
Each of the 3 digits in a number can be any one of the four allowed.Total number of possibilities = (4 x 4 x 4) = 64numbers.
501396
396510
3
It could be: 54317
965301
103596