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If the six digits are all distinct and either they are all positive or a leading zero is permitted, then the answer is 6! = 6*5*4*3*2*1 = 720

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Q: How many unique numbers can be formed from a six digit number?
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Related questions

How many 4 digit numbers can be formed by the digits 1234567890?

The number 1234567890 can create about 39 of 40 4 digit numbers.


The number 3456 is divisible by which single digit numbers?

A very unique number; it is divisible by each single digit number except 5 and 7.


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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.


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You are a 4 digit number your hundreds digit number is triple your thousands digit the number formed by your tens and ones digit is triple the number formed by your thousands and hundreds digits?

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