A and B are playing mathematical puzzles. A asks B "the whole numbers, greater than one, which can divide all the nine three digit numbers 111,222,333,444,555,666, 777,888 and 999?"
B immediately gave the desired answer. It was:
Answer: B
Each of the number can be written as a multiple of 111.
The factors of 111 are 3 and 37
Thus the desired answer is 3, 37 and 111