220
110,2
55,2,2
11,5,2,2
220 110,2 55,2,2 11,5,2,2
110,2 55,2,2 11,5,2,2
220 110,2 55,2,2 11,5,2,2
20= 5*2*220^4 5^2 2
Since 220 is a factor of 660, it is automatically the GCF.
The greatest common factor of 220, 440, and 880 is 220
880 / \ 440 2 / \ 220 2 / \ 110 2 / \ 22 2 / \ 11 2
The greatest common factor of 220 and 400 is 20.
Since 5 is a factor of 220, it is automatically the GCF.
The Greatest Common Factor of 100, 120, 220: 20
It is: 220
440 2, 220 2, 2, 110 2, 2, 2, 55 2, 2, 2, 5, 11