What is the Greatest Common Factor of 721 and 736?

Greatest common factor (GCF) of 721 and 736 is 1.

GCF(721,736) = 1

We will now calculate the prime factors of 721 and 736, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 721 and 736.

How to find the GCF of 721 and 736?

We will first find the prime factorization of 721 and 736. After we will calculate the factors of 721 and 736 and find the biggest common factor number .

Step-1: Prime Factorization of 721

Prime factors of 721 are 7, 103. Prime factorization of 721 in exponential form is:

721 = 7¹ × 103¹

Step-2: Prime Factorization of 736

Prime factors of 736 are 2, 23. Prime factorization of 736 in exponential form is:

736 = 2⁵ × 23¹

Step-3: Factors of 721

List of positive integer factors of 721 that divides 721 without a remainder.

1, 7, 103

Step-4: Factors of 736

List of positive integer factors of 736 that divides 721 without a remainder.

1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 721 and 736. The biggest common factor number is the GCF number.
So the greatest common factor 721 and 736 is 1.

Also check out the Least Common Multiple of 721 and 736