What is the Greatest Common Factor of 703 and 721?

Greatest common factor (GCF) of 703 and 721 is 1.

GCF(703,721) = 1

We will now calculate the prime factors of 703 and 721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 703 and 721.

How to find the GCF of 703 and 721?

We will first find the prime factorization of 703 and 721. After we will calculate the factors of 703 and 721 and find the biggest common factor number .

Step-1: Prime Factorization of 703

Prime factors of 703 are 19, 37. Prime factorization of 703 in exponential form is:

703 = 19¹ × 37¹

Step-2: Prime Factorization of 721

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

721 = 7¹ × 103¹

Step-3: Factors of 703

List of positive integer factors of 703 that divides 703 without a remainder.

1, 19, 37

Step-4: Factors of 721

List of positive integer factors of 721 that divides 703 without a remainder.

1, 7, 103

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 703 and 721. The biggest common factor number is the GCF number.
So the greatest common factor 703 and 721 is 1.

Also check out the Least Common Multiple of 703 and 721