What is the Greatest Common Factor of 9729 and 9747?

Greatest common factor (GCF) of 9729 and 9747 is 9.

GCF(9729,9747) = 9

We will now calculate the prime factors of 9729 and 9747, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9729 and 9747.

How to find the GCF of 9729 and 9747?

We will first find the prime factorization of 9729 and 9747. After we will calculate the factors of 9729 and 9747 and find the biggest common factor number .

Step-1: Prime Factorization of 9729

Prime factors of 9729 are 3, 23, 47. Prime factorization of 9729 in exponential form is:

9729 = 3² × 23¹ × 47¹

Step-2: Prime Factorization of 9747

Prime factors of 9747 are 3, 19. Prime factorization of 9747 in exponential form is:

9747 = 3³ × 19²

Step-3: Factors of 9729

List of positive integer factors of 9729 that divides 9729 without a remainder.

1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 3243

Step-4: Factors of 9747

List of positive integer factors of 9747 that divides 9729 without a remainder.

1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 3249

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9729 and 9747. The biggest common factor number is the GCF number.
So the greatest common factor 9729 and 9747 is 9.

Also check out the Least Common Multiple of 9729 and 9747