The GCF of consecutive integers is 1.
The greatest common factor of 34 and 35 is 1. The GCF of any two consecutive integers is always 1. The GCF of a pair can't be any larger than the difference between the two numbers.
The GCF is 35.
The GCF is 7.
The GCF is 34.
The GCF is 2.
The GCF is 17.
The GCF is 2.
The GCF is 1.
The GCF is 2.
The GCF is 1.
The GCF is 5.
35 and 70 have a GCF of 35.