What is the GCF of 2 5 and 7?

To find the greatest common factor (GCF) of 2, 5, and 7, you can list the factors of each number and identify the common factors.

Factors of 2: 1, 2

Factors of 5: 1, 5

Factors of 7: 1, 7

The only common factor of 2, 5, and 7 is 1. Therefore, the GCF of 2, 5, and 7 is 1.