What is the Greatest Common Factor of 721 and 740?

Greatest common factor (GCF) of 721 and 740 is 1.

GCF(721,740) = 1

We will now calculate the prime factors of 721 and 740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 721 and 740.

How to find the GCF of 721 and 740?

We will first find the prime factorization of 721 and 740. After we will calculate the factors of 721 and 740 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 740

Prime factors of 740 are 2, 5, 37. Prime factorization of 740 in exponential form is:

740 = 2² × 5¹ × 37¹

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 740

List of positive integer factors of 740 that divides 721 without a remainder.

1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 721 and 740. The biggest common factor number is the GCF number.
So the greatest common factor 721 and 740 is 1.

Also check out the Least Common Multiple of 721 and 740