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1x125
5x25
The math factor pairs of 18 are (1,18) , (2,9) , (3,6) .
21,17,3
There are two: 125 = 1 x 125 125 = 5 x 25
827 and 1.
1,8 2,4
(218,1)(109,2)
(49,1)(7,7)
10x1 1x105x22x5
1 and 73
(4,1)(2,2)
(14,1)(7,2)