Factor pairs of 42 are 1 x 42, 2 x 21, 3 x 14, and 6 x 7.
1 & 28, 2 & 14, 4 & 7
The factor pairs of 28 are :28,114,27,4
its a factor with two pairs of the same number
12 has 3 factor pairs and the pairs are (1,12), (2,6) and (3,4).
The factor pairs of 14 are 1*14, and 2*7
14 = 1*14, 2*7 14 = 1 x 14 ( 1st factor pairs) = 2 x 7 (2nd factor pairs
The factor pairs of 28 are 1*28, 2*14, and 4*7
(1, 14) (2, 7)
They are: 1, 2, 7 and 14
1 and 14, 2 and 7
(14,1)(7,2)
14 = 1 x 14 14 = 2 x 7
The factor pairs of 112 are 1*112, 2*56, 4*28, 7*16, and 8*14
The factor pairs of 56 are: 1, 56; 2, 28; 4, 14; 7, 8 Therefore, if you exclude itself and 1, there are three factor pairs, but if you include itself and 1, there are four factor pairs.
There are five factor pairs for 196:196 = 1 x 196196 = 2 x 98196 = 4 x 49196 = 7 x 28196 = 14 x 14
The factor pairs of 56 are 1 x 56, 2 x 28, 4 x 14, and 7 x 8.