4 x 3 x 2 = 24 of them
500
180 of them.
It is 120 if the digits cannot be repeated.
The numbers from 1000 to 9999 are all 4 digits, as are -1000 to -9999. Therefore there are 18,000 four-digit numbers in all.
The numbers from 1000 to 9999 are all 4 digits, as are -1000 to -9999. Therefore there are 18,000 four-digit numbers in all.
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
720
865410
27 three digit numbers from the digits 3, 5, 7 including repetitions.
24
500
840
There are 60480 numbers.
180 of them.
There are 3024 of them.
1 set
It is 120 if the digits cannot be repeated.