What is the Greatest Common Factor of 9709 and 9721?

Greatest common factor (GCF) of 9709 and 9721 is 1.

GCF(9709,9721) = 1

We will now calculate the prime factors of 9709 and 9721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9709 and 9721.

How to find the GCF of 9709 and 9721?

We will first find the prime factorization of 9709 and 9721. After we will calculate the factors of 9709 and 9721 and find the biggest common factor number .

Step-1: Prime Factorization of 9709

Prime factors of 9709 are 7, 19, 73. Prime factorization of 9709 in exponential form is:

9709 = 7¹ × 19¹ × 73¹

Step-2: Prime Factorization of 9721

Prime factors of 9721 are 9721. Prime factorization of 9721 in exponential form is:

9721 = 9721¹

Step-3: Factors of 9709

List of positive integer factors of 9709 that divides 9709 without a remainder.

1, 7, 19, 73, 133, 511, 1387

Step-4: Factors of 9721

List of positive integer factors of 9721 that divides 9709 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9709 and 9721. The biggest common factor number is the GCF number.
So the greatest common factor 9709 and 9721 is 1.

Also check out the Least Common Multiple of 9709 and 9721