11
LCM(55, 4) = 220
660
LCM(40, 45, 50, 55) = 19800
A common denominator is 55.
55
A common denominator, though not the least one, is 66*55 = 3630.
The common factors of 44 and 55 are: 1 and 11
The GCF of 44 and 55 is 11.
880
The greatest common factor(gcf) of 44 and 55 is 11.
11
Answer: 55