What is the Greatest Common Factor of 7721 and 7729?

Greatest common factor (GCF) of 7721 and 7729 is 1.

GCF(7721,7729) = 1

We will now calculate the prime factors of 7721 and 7729, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7721 and 7729.

How to find the GCF of 7721 and 7729?

We will first find the prime factorization of 7721 and 7729. After we will calculate the factors of 7721 and 7729 and find the biggest common factor number .

Step-1: Prime Factorization of 7721

Prime factors of 7721 are 7, 1103. Prime factorization of 7721 in exponential form is:

7721 = 7¹ × 1103¹

Step-2: Prime Factorization of 7729

Prime factors of 7729 are 59, 131. Prime factorization of 7729 in exponential form is:

7729 = 59¹ × 131¹

Step-3: Factors of 7721

List of positive integer factors of 7721 that divides 7721 without a remainder.

1, 7, 1103

Step-4: Factors of 7729

List of positive integer factors of 7729 that divides 7721 without a remainder.

1, 59, 131

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7721 and 7729. The biggest common factor number is the GCF number.
So the greatest common factor 7721 and 7729 is 1.

Also check out the Least Common Multiple of 7721 and 7729