What is the Greatest Common Factor of 665 and 673?

Greatest common factor (GCF) of 665 and 673 is 1.

GCF(665,673) = 1

We will now calculate the prime factors of 665 and 673, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 665 and 673.

How to find the GCF of 665 and 673?

We will first find the prime factorization of 665 and 673. After we will calculate the factors of 665 and 673 and find the biggest common factor number .

Step-1: Prime Factorization of 665

Prime factors of 665 are 5, 7, 19. Prime factorization of 665 in exponential form is:

665 = 5¹ × 7¹ × 19¹

Step-2: Prime Factorization of 673

Prime factors of 673 are 673. Prime factorization of 673 in exponential form is:

673 = 673¹

Step-3: Factors of 665

List of positive integer factors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133

Step-4: Factors of 673

List of positive integer factors of 673 that divides 665 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 665 and 673. The biggest common factor number is the GCF number.
So the greatest common factor 665 and 673 is 1.

Also check out the Least Common Multiple of 665 and 673