What is the GCF of 10 and 12

The GCF should be 2

10: 2 5

12: 2 2 3

GCF: 2

2

Step-by-step explanation:

When I find GCF, I like to use the factor tree to do prime facotrization. The prime factorization of 10 is 2 and 5. The prime factorization of 12 is 2,2, and 3. The last step is to selected the prime numbers that are the same.

10: 2, 5

12: 2,2,3

As you can see, 2 is the only number that is in both of the prime factorization so the answer is 2.