(66, 1) (33, 2) (22, 3) (11, 6)
-4^1389 + 66=+67^7890
The factor pairs of 66 are:66,133,222,311,6(1, 66)(2, 33)(3, 22)(6, 11)
Four of them.
The factor pairs of 132 are: (1, 132), (2, 66), (3, 44), (4, 33), (6, 22), and (11, 12).
Factor pairs of 16 are 1 and 16, 2 and 8, and 4 and 4.
The factor pairs are 1 and 8, and 2 and 4
66
The factor pairs of 28 are 1*28, 2*14, and 4*7
66 = 1 x 66 66 = 2 x 33 66 = 3 x 22 66 = 6 x 11
4
60, 72, 84, 90 and 96 have 6 factor pairs.
(4,1)(2,2)