What is the Greatest Common Factor of 12 and 24?

Greatest common factor (GCF) of 12 and 24 is 12.

GCF(12,24) = 12

We will now calculate the prime factors of 12 and 24, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12 and 24.

How to find the GCF of 12 and 24?

We will first find the prime factorization of 12 and 24. After we will calculate the factors of 12 and 24 and find the biggest common factor number .

Step-1: Prime Factorization of 12

Prime factors of 12 are 2, 3. Prime factorization of 12 in exponential form is:

12 = 2² × 3¹

Step-2: Prime Factorization of 24

Prime factors of 24 are 2, 3. Prime factorization of 24 in exponential form is:

24 = 2³ × 3¹

Step-3: Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6

Step-4: Factors of 24

List of positive integer factors of 24 that divides 12 without a remainder.

1, 2, 3, 4, 6, 8, 12

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12 and 24. The biggest common factor number is the GCF number.
So the greatest common factor 12 and 24 is 12.

Also check out the Least Common Multiple of 12 and 24