The GCF is 1.
It is: 1
The GCF is 400.
The GCF is 1.
The GCF is 25.
The GCF is 25.
The GCF is: 4
The GCF is: 4
The GCF is 5.
72.25% = 289/400
The greatest common factor of 280 and 400 is 40.The GCF is 40.The GCF is 40.
The difference between 375 and 400 is 25, so that is the largest possible value for the GCF. In fact, 100, 375, and 400 are all divisible by 25, so it is the GCF.
The GCF is 1.