What is the largest 9-digits number that is a multiple of 9, but which has no two digits the same?

Answers (1)

The largest 9-digit number which has no two digits the same is = 987654321.

Sum of the digits = 9+8+7+6+5+4+3+2+1=45 and 4+5=9. Thus, according to the divisibility rule of 9, this number is divisible by 9.

 

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