5! or 5P5 . A total of 120 series
There are 60480 numbers.
1 set
There are 5! = 120 such numbers.
There are 900 of them.
6*6*3 = 108 numbers.
There are 7,290 different 4-digit numbers that can be formed from the digits 1-9 without repetition.
There are 3024 of them.
180 of them.
There are 60480 numbers.
840
24
500
27 three digit numbers from the digits 3, 5, 7 including repetitions.
There are 5*4*3 = 60 such numbers.
1 set
There are 5! = 120 such numbers.
The number 1234567890 can create about 39 of 40 4 digit numbers.