The only factors for 62 are 2 and 31
31 is not a factor of 100 but 2 is so the answer to your question is: 2
GCF of 40 and 62 is 2.
The GCF is 31.
The GCF is 2.
The GCF is 1.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 1.
The GCF is 2.
The GCF is 2.
The GCF is 1.