What is the Greatest Common Factor of 80703 and 80721?

Greatest common factor (GCF) of 80703 and 80721 is 9.

GCF(80703,80721) = 9

We will now calculate the prime factors of 80703 and 80721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 80703 and 80721.

How to find the GCF of 80703 and 80721?

We will first find the prime factorization of 80703 and 80721. After we will calculate the factors of 80703 and 80721 and find the biggest common factor number .

Step-1: Prime Factorization of 80703

Prime factors of 80703 are 3, 7, 61. Prime factorization of 80703 in exponential form is:

80703 = 3³ × 7² × 61¹

Step-2: Prime Factorization of 80721

Prime factors of 80721 are 3, 8969. Prime factorization of 80721 in exponential form is:

80721 = 3² × 8969¹

Step-3: Factors of 80703

List of positive integer factors of 80703 that divides 80703 without a remainder.

1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 427, 441, 549, 1281, 1323, 1647, 2989, 3843, 8967, 11529, 26901

Step-4: Factors of 80721

List of positive integer factors of 80721 that divides 80703 without a remainder.

1, 3, 9, 8969, 26907

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 80703 and 80721. The biggest common factor number is the GCF number.
So the greatest common factor 80703 and 80721 is 9.

Also check out the Least Common Multiple of 80703 and 80721