You have 9 options for the first position (all except zero); 9 options for the second position (any digit except the digit used for the first position; 8 options for the third position; 7 options for the fourth position; 6 options for the fifth position; and 5 options for the sixth position. Multiply everything together.
To form a 4-digit number using the digits 2, 6, 9, and 5 without repeating any digit, you can use all four digits. The number of ways to arrange 4 digits is calculated as 4! (4 factorial), which equals 24. Therefore, you can form 24 different 4-digit numbers with the numerals 2695 without repeating any digit.
256
24
Without repeating digits (not digets!) and without leading 0s, 600 of them.
60
256
24
Without repeating digits (not digets!) and without leading 0s, 600 of them.
98765
60
-58264
468, 486, 648, 684, 846, 864.
86420
It is a repeating decimal.
4 x 3 x 2 ie 24
5040
id say, 0123456789. but depends how many digits you can have