The Greatest Common Factor of 40 and 100 is 20. 5x2x2. Use a factor tree and learn math!!!!!!!!!!!!!!
The GCF is 10.
The GCF is 20.
The GCF is 20.
GCF(60, 40, 100) = 20.
The GCF is 5.
The GCF is 10.
The GCF is 20.
The GCF is 20.
The GCF is 20.
It is: 20
The GCF is 20.
The GCF is 20.