The GCF is 7.
The GCF is 9.
The GCF is 3.
The GCF is 7.The GCF is 7.
The GCF is 7.
The GCF is 7.
The GCF is 7.
The GCF of 1 and 91 is 1. The GCF of 91 and 91 is 91.
The greatest common factor (GCF) of three numbers is the largest number that divides each of the three numbers without leaving a remainder. To find the GCF of 91, 21, and 49, we need to factorize each number. The prime factors of 91 are 7 and 13, the prime factors of 21 are 3 and 7, and the prime factors of 49 are 7 and 7. The common factor among them is 7, so the GCF of 91, 21, and 49 is 7.
The GCF is 7.
The GCF is 13.
The GCF is 13.