They are: 3 times 31 = 93 and 1 times 93 = 93
The factor pairs of 93 are 1 x 93 and 3 x 31
(93,1)(31,3)
1 x 93, 3 x 31, 31 x 3, 93 x 1
Sixteen factor pairs.
2 factor pairs
Three factor pairs
There are 3 factor pairs of 16.
225 has five factor pairs:225,175,345,525,915,15
30 has four factor pairs:30,115,210,36,5
20 has 3 factor pairs. Pairs are (1,20), (2,10) and (9,9)
1 and 837, 3 and 279, 9 and 93, 27 and 31