factor pair = 76,1
factor pair = 38,2
factor pair = 19,4
76 has 3 factor pairs: (1,76), (2,38), (4,19).
(76,1)(38,2)(19,4)
There are 3 factor pairs of 76:76 = 1 x 7676 = 2 x 3876 = 4 x 19
12 and 18 have three factor pairs.
There are three factor pairs for 44:44,122,211,4
12 has 3 factor pairs and the pairs are (1,12), (2,6) and (3,4).
12 and 18 have three factor pairs.
81 has three factor pairs: 81,1 27,3 9,9
I think you may be confusing multiples with factors. Multiples of 76 can't have a product of 76. The factor pairs of 76 are (76, 1) (38, 2) (19, 4)
Three of them.
16 has three factor pairs: (16,1)(8,2)(4,4)
"Dose" is a measured portion of a medicine. I am not aware of any factor pairs related to dose 18 or any other measured quantities of medication!18 does have 3 factor pairs.