The greatest common factor of 20, 45, and 116.
20 = 2x2x5
45=3x3x5
116=2x2x29
Do you see any factor which is common to all three?
(I would not consider 1 as a significant common factor)
45=3x3x5
116=2x2x29
Do you see any factor which is common to all three?
(I would not consider 1 as a significant common factor)