15
The greates common factor of 27 adn 45 is 9.
The GCF is 15.
The GCF of 15 and 45 is 15.
The greatest common factor of 18 and 45 is 9.
9 is the greatest common factor of 18, 45 and 54.
The Greatest Common Factor of 45, 85, 63 and 18 is 1.
The GCF is 3.
45: 5,9,1,45 18: 6,3,8,2,1,18,
The least common factor of 18, 27, 45 is 1. The least common factor of any set of numbers is 1.
The greatest common factor is 9 because 18 is divisible by 9 and so is 45. It can not be greaater than half of 18 and 45 is not divisible by 18.
The Greatest Common Factor of 18, 36, and 45 is 9