The answer is one, because 89 is a Prime number, and is not a factor of 95.
GCF(95, 89) = 1: the numbers are co-prime.
The GCF is 95.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
gcf(89, 62) = 1.
The GCF for 89 47 is 1.
The GCF of 89 and 1000 is 1.
The GCF is 5.
The GCF is 1.