Since both numbers are prime numbers, the greatest common factor (GCF) of 59 and 13 is 1.
Prime Factorizations 65 = 5 *13 1534 = 2 * 13 * 59 Thus 13 is the GCF.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is: 1
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF of 21 and 59 is 1.
The GCF is 1.