Try to find out a multi-digit number that if multiplied by the number 9 or any
of its multiplications products (18, 27, 36, 45,..) will result in the
multiplication factor repeated (n) number of times.
Answer:
The number is: 12345679
12345679 * 9 = 111111111
12345679 * 18 = 222222222
12345679 * 27 = 333333333
And so on ...
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