What is the Greatest Common Factor of 661 and 674?

Greatest common factor (GCF) of 661 and 674 is 1.

GCF(661,674) = 1

We will now calculate the prime factors of 661 and 674, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 661 and 674.

How to find the GCF of 661 and 674?

We will first find the prime factorization of 661 and 674. After we will calculate the factors of 661 and 674 and find the biggest common factor number .

Step-1: Prime Factorization of 661

Prime factors of 661 are 661. Prime factorization of 661 in exponential form is:

661 = 661¹

Step-2: Prime Factorization of 674

Prime factors of 674 are 2, 337. Prime factorization of 674 in exponential form is:

674 = 2¹ × 337¹

Step-3: Factors of 661

List of positive integer factors of 661 that divides 661 without a remainder.

Step-4: Factors of 674

List of positive integer factors of 674 that divides 661 without a remainder.

1, 2, 337

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 661 and 674. The biggest common factor number is the GCF number.
So the greatest common factor 661 and 674 is 1.

Also check out the Least Common Multiple of 661 and 674