1x6, 2x3
There are 3 factor pairs of 20: 1 x 20, 2 x 10 and 4 x 5.
A way to show factor pairs in a list of all the factors of a number. A factor rainbow can be used to check whether a list of factors is correct.
240,1 120,2 80,3 60,4 48,5 40,6 30,8 24,10 20,12 16,15
The factor pairs of 28 are :28,114,27,4
The math factor pairs of 18 are (1,18) , (2,9) , (3,6) .
21,17,3
The factor pairs of 10 are 1*10, 2*5
827 and 1.
1,8 2,4
(218,1)(109,2)
1x125 5x25
(4,1)(2,2)
(14,1)(7,2)
(1,100) (10,10)
1 and 73
(49,1)(7,7)