What is the Greatest Common Factor of 8 and 12?
Greatest common factor (GCF) of 8 and 12 is 4.
GCF(8,12) = 4
We will now calculate the prime factors of 8 and 12, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8 and 12.
How to find the GCF of 8 and 12?
We will first find the prime factorization of 8 and 12. After we will calculate the factors of 8 and 12 and find the biggest common factor number .
Step-1: Prime Factorization of 8
Prime factors of 8 are 2. Prime factorization of 8 in exponential form is:
8 = 23
Step-2: Prime Factorization of 12
Prime factors of 12 are 2, 3. Prime factorization of 12 in exponential form is:
12 = 22 × 31
Step-3: Factors of 8
List of positive integer factors of 8 that divides 8 without a remainder.
1, 2, 4
Step-4: Factors of 12
List of positive integer factors of 12 that divides 8 without a remainder.
1, 2, 3, 4, 6
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 8 and 12. The biggest common factor number is the GCF number.
So the greatest common factor 8 and 12 is 4.
Also check out the Least Common Multiple of 8 and 12