1 x 125
5 x 25
That's it !
There are two: 125 = 1 x 125 125 = 5 x 25
1 and 500, 2 and 250, 4 and 125, 5 and 100, 10 and 50, 20 and 25, a total of 6 factor pairs.
1 x 125, 5 x 25, 25 x 5, 125 x 1
1x40, 2x20, 4x10, 5x8 are all the factor pairs of 40.
The factor pairs of 20 are: 20,1 / 10,2 / 5,4
43
The factor pairs for 38 are (1, 19) and (2, 38).
The factor pairs of 26 are: 1 × 26 2 × 13
53,1
1,3,149,447
612,1306,2204,3153,4102,668,951,1236,1734,18
57,119,3