What is the Greatest Common Factor of 308 and 312?
Greatest common factor (GCF) of 308 and 312 is 4.
GCF(308,312) = 4
We will now calculate the prime factors of 308 and 312, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 308 and 312.
How to find the GCF of 308 and 312?
We will first find the prime factorization of 308 and 312. After we will calculate the factors of 308 and 312 and find the biggest common factor number .
Step-1: Prime Factorization of 308
Prime factors of 308 are 2, 7, 11. Prime factorization of 308 in exponential form is:
308 = 22 × 71 × 111
Step-2: Prime Factorization of 312
Prime factors of 312 are 2, 3, 13. Prime factorization of 312 in exponential form is:
312 = 23 × 31 × 131
Step-3: Factors of 308
List of positive integer factors of 308 that divides 308 without a remainder.
1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154
Step-4: Factors of 312
List of positive integer factors of 312 that divides 308 without a remainder.
1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 308 and 312. The biggest common factor number is the GCF number.
So the greatest common factor 308 and 312 is 4.
Also check out the Least Common Multiple of 308 and 312
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