What is the Greatest Common Factor of 591 and 606?

Greatest common factor (GCF) of 591 and 606 is 3.

GCF(591,606) = 3

We will now calculate the prime factors of 591 and 606, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 591 and 606.

How to find the GCF of 591 and 606?

We will first find the prime factorization of 591 and 606. After we will calculate the factors of 591 and 606 and find the biggest common factor number .

Step-1: Prime Factorization of 591

Prime factors of 591 are 3, 197. Prime factorization of 591 in exponential form is:

591 = 3¹ × 197¹

Step-2: Prime Factorization of 606

Prime factors of 606 are 2, 3, 101. Prime factorization of 606 in exponential form is:

606 = 2¹ × 3¹ × 101¹

Step-3: Factors of 591

List of positive integer factors of 591 that divides 591 without a remainder.

1, 3, 197

Step-4: Factors of 606

List of positive integer factors of 606 that divides 591 without a remainder.

1, 2, 3, 6, 101, 202, 303

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 591 and 606. The biggest common factor number is the GCF number.
So the greatest common factor 591 and 606 is 3.

Also check out the Least Common Multiple of 591 and 606