Question

find the greatest common factor of 34 and 39.

Explanation:

Step1: List factors of 34

Factors of 34: $1, 2, 17, 34$

Step2: List factors of 39

Factors of 39: $1, 3, 13, 39$

Step3: Identify common factors

Common factor(s): $1$

Step4: Select the greatest common factor

The only common factor is 1, so it is the greatest.

Answer:

1