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Assuming that numbers with a leading zero is not permitted,
the answer is 9*9! = 3,265,920.
If leading 0s were permitted, the answer would have been 3,628,800
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How many 3-digit numbers can be formed using 0123456789 when repetition is not allowed?
-123456786
How many six digit numbers can be formed using the digits 0123456789 Example equals 123456 or 098765?
The number of six digit numbers that you can make from ten different digits ifrepetitions of same digit on the six digit number is allowed is 1 000 000 numbers(including number 000 000).If no repetitions of the the same digit are allowed then you have:10P6 = 10!/(10-6)! = 151 200 different six digit numbers(six digit permutations form 10 different digits).
How many 6 digit numbers can be formed using the digits 123456789?
There are 60480 numbers.
How many 3 digit numbers can be formed using 12345 with repition?
125
How many 10 digit numbers can be formed using each digit once?
ten factorial = 10! = 3,628,800
How many three digit numbers can be formed using the digits 0 to 9?
There are 900 of them.
How many 6 digit number can be formed using 3445567?
5040 numbers can be made.
How many 4 digit numbers can be formed by the digits 1 2 3 4 using each digit only once?
24 different numbers.
What is the smallest number that can be made by subtracting 2 five digit numbers using the digits 0123456789?
It is difficult to interpret exactly what you are trying to ask. If you allow your five digit number to have leading zeroes and do not allow negative numbers, then 00000 - 99999 = -99999 is the smallest number. If you do allow negative 5 digit numbers, then (-99999) - 99999 = -199998 is the smallest number.
How many four digits numbers can be formed using 0123456789?
Assuming that the first digit of the 4 digit number cannot be 0, then there are 9 possible digits for the first of the four. Also assuming that each digit does not need to be unique, then the next three digits of the four can have 10 possible for each. That results in 9x10x10x10 = 9000 possible 4 digit numbers. If, however, you can not use the same number twice in completing the 4 digit number, and the first digit cannot be 0, then the result is 9x9x8x7 = 4536 possible 4 digit numbers. If the 4 digit number can start with 0, then there are 10,000 possible 4 digit numbers. If the 4 digit number can start with 0, and you cannot use any number twice, then the result is 10x9x8x7 = 5040 possilbe 4 digit numbers.
How many 3 digit numbers can be formed using 689?
27 if the digits can be repeated. 6 if not.
How many 3-digit numbers can be formed using the digits 1 2 3?
27
