The GCF is 6.
(7 x 1) + (7 x 6) = 7 x 7 = 49
(2 x 8) + (7 x 8) = 9 x 8 = 72
(2 x 9) + (2 x 32) = 2 x 41 = 82
9 + 36 = (9 x 1) + (9 x 4) = 9 x 5 = 45
The GCF is 16.
The GCF is 6.
(6 x 7) + (6 x 16) = 6 x 23 = 138
(7 x 1) + (7 x 6) = 7 x 7 = 49
(2 x 8) + (7 x 8) = 9 x 8 = 72
(9 x 1) + (9 x 4) = 9 x 5 = 45
(2 x 9) + (2 x 32) = 2 x 41 = 82
(21 x 2) + (25 x 2) = 46 x 2 = 92
(4 x 4) + (4 x 9) = 4 x 13 = 52
9 + 36 = (9 x 1) + (9 x 4) = 9 x 5 = 45
3(3 + 5)
16 + 40 = (2 x 8) + (5 x 8) = 7 x 8 = 56