To form a four-digit number using the digits 1, 2, 3, 4, 5, and 6 without repeating any digits, you can choose the first digit in 6 ways, the second digit in 5 ways, the third digit in 4 ways, and the fourth digit in 3 ways. Therefore, the total number of four-digit combinations is calculated as (6 \times 5 \times 4 \times 3 = 360). Thus, 360 different four-digit numbers can be formed.
256
6
976542
502 205 250 520 4 numbers. If a leading zero is allowed then you can have 052 and 025 for 6 numbers.
9876543210, without using any mathemeatical operations.
256
1023459
86420
96425 Larger numbers can be made by cascading the powers, but not on here because the notation won't take it.
6
976542
9876543210
It is 0.123459
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
There are 25 such numbers.
id say, 0123456789. but depends how many digits you can have
873 is.