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 ?
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)
