What is the Greatest Common Factor of 556 and 571?

Greatest common factor (GCF) of 556 and 571 is 1.

GCF(556,571) = 1

We will now calculate the prime factors of 556 and 571, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 556 and 571.

How to find the GCF of 556 and 571?

We will first find the prime factorization of 556 and 571. After we will calculate the factors of 556 and 571 and find the biggest common factor number .

Step-1: Prime Factorization of 556

Prime factors of 556 are 2, 139. Prime factorization of 556 in exponential form is:

556 = 2² × 139¹

Step-2: Prime Factorization of 571

Prime factors of 571 are 571. Prime factorization of 571 in exponential form is:

571 = 571¹

Step-3: Factors of 556

List of positive integer factors of 556 that divides 556 without a remainder.

1, 2, 4, 139, 278

Step-4: Factors of 571

List of positive integer factors of 571 that divides 556 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 556 and 571. The biggest common factor number is the GCF number.
So the greatest common factor 556 and 571 is 1.

Also check out the Least Common Multiple of 556 and 571