A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

Maths Magic Puzzle

12345679

12345679 9 = 111111111 (only 1s)
12345679 18 = 222222222 (only 2s)
12345679 27 = 333333333 (only 3s)
12345679 36 = 444444444 (only 4s)
12345679 45 = 555555555 (only 5s)

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