The factors of 56 are:
1, 2, 4, 7, 8, 14, 28, 56
The factors of 78 are:
1, 2, 3, 6, 13, 26, 39, 78
The factors of 130 are:
1, 2, 5, 10, 13, 26, 65, 130
The common factors are:
1, 2
2 is the greatest common factor of 56, 78 and 130.
It is: 2
The word "greatest" is a superlative and that means there can only be one such number. GCF(56, 78, 130) = 2.
The GCF is 2.
You need at least two numbers to find a GCF.
The greatest common multiple of any set of integers is infinite.
The GCF of 78, 130, and 208 is 26.
Common factors of 55 and 78 are: 1.
A GCF of 26.
Since 26 is a factor of 78, all the factors of 26 are common to 78.
Common factors of 78 and 14 are: 1 and 2.
The common factors of 78 and 84 are 1, 2, 3 and 6.