The factors of 54 are:
1, 2, 3, 6, 9, 18, 27, 54
The factors of 108 are:
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
The GCF is 54.
That would be 54.
GCF=9
18
The GCF is 6.
The GCF is: 6
The common factors of 45 and 108 are: 1, 3 & 9.
All the factors of 108 are 1,2,3,4,6,9,12,18,27,36,54,108
The common factors of 81 and 108 are: 1, 3, 9, and 27
The greatest prime factors are 5 (for 45) and 3 (for 108).
The factors of 108 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, and 108.
The answer is 53.