There are 3 factor pairs of 76:76 = 1 x 7676 = 2 x 3876 = 4 x 19
There are 3 factor pairs of 99.99 = 1 x 9999 = 3 x 3399 = 9 x 11
(1, 21) (3, 7)
There are 3 factor pairs of 245:245 = 1 x 245245 = 5 x 49245 = 7 x 35
(1, 27) and (3, 9)
76 has 3 factor pairs: (1,76), (2,38), (4,19).
There are 3 factor pairs of 76:76 = 1 x 7676 = 2 x 3876 = 4 x 19
(76,1)(38,2)(19,4)
factor pair = 76,1 factor pair = 38,2 factor pair = 19,4
20 has 3 factor pairs. Pairs are (1,20), (2,10) and (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)
12 has 3 factor pairs and the pairs are (1,12), (2,6) and (3,4).
1 and 3
1 and 3
The GCF of 3, 76, and 78 is 1.
12 and 18 have three factor pairs.
The factor pairs of 15 are 1 x 15 and 3 x 5.