To form a five-digit number using the digits 1, 2, 3, 4, and 5, each digit must be used exactly once. Since there are 5 unique digits, the total number of different five-digit numbers that can be formed is given by the factorial of the number of digits, which is 5! = 120. Therefore, 120 different five-digit numbers can be formed using the digits 12345.
It is 120 if the digits cannot be repeated.
If repetition of digits isn't allowed, then no13-digit sequencescan be formed from only 5 digits.
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If the two must be different digits, then there 20 possibilities. If they can be the same one, then there are 25 possibilities.
500
1 set
It is 120 if the digits cannot be repeated.
If repetition of digits isn't allowed, then no13-digit sequencescan be formed from only 5 digits.
jfnvjsdkncjfdknvlakdjvbsadoihfcb shfvbcnsHLfc bnshJCbvjhbeshuyvbe b hdfbgehfgbwahucgbvfer fguy gyfuby uyr
125
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
The first digit can have 5 possible numbers, the second digit can have 4, the third 3, the fourth 2. 5
There are 625 of them - too many to list.
If the two must be different digits, then there 20 possibilities. If they can be the same one, then there are 25 possibilities.
27 three digit numbers from the digits 3, 5, 7 including repetitions.
24
500