What is the Greatest Common Factor of 747 and 755?

Greatest common factor (GCF) of 747 and 755 is 1.

GCF(747,755) = 1

We will now calculate the prime factors of 747 and 755, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 747 and 755.

How to find the GCF of 747 and 755?

We will first find the prime factorization of 747 and 755. After we will calculate the factors of 747 and 755 and find the biggest common factor number .

Step-1: Prime Factorization of 747

Prime factors of 747 are 3, 83. Prime factorization of 747 in exponential form is:

747 = 3² × 83¹

Step-2: Prime Factorization of 755

Prime factors of 755 are 5, 151. Prime factorization of 755 in exponential form is:

755 = 5¹ × 151¹

Step-3: Factors of 747

List of positive integer factors of 747 that divides 747 without a remainder.

1, 3, 9, 83, 249

Step-4: Factors of 755

List of positive integer factors of 755 that divides 747 without a remainder.

1, 5, 151

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 747 and 755. The biggest common factor number is the GCF number.
So the greatest common factor 747 and 755 is 1.

Also check out the Least Common Multiple of 747 and 755