What is the Greatest Common Factor of 538 and 556?
Greatest common factor (GCF) of 538 and 556 is 2.
GCF(538,556) = 2
We will now calculate the prime factors of 538 and 556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 538 and 556.
How to find the GCF of 538 and 556?
We will first find the prime factorization of 538 and 556. After we will calculate the factors of 538 and 556 and find the biggest common factor number .
Step-1: Prime Factorization of 538
Prime factors of 538 are 2, 269. Prime factorization of 538 in exponential form is:
538 = 21 × 2691
Step-2: Prime Factorization of 556
Prime factors of 556 are 2, 139. Prime factorization of 556 in exponential form is:
556 = 22 × 1391
Step-3: Factors of 538
List of positive integer factors of 538 that divides 538 without a remainder.
1, 2, 269
Step-4: Factors of 556
List of positive integer factors of 556 that divides 538 without a remainder.
1, 2, 4, 139, 278
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 538 and 556. The biggest common factor number is the GCF number.
So the greatest common factor 538 and 556 is 2.
Also check out the Least Common Multiple of 538 and 556
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