What is the Greatest Common Factor of 9915 and 9924?

Greatest common factor (GCF) of 9915 and 9924 is 3.

GCF(9915,9924) = 3

We will now calculate the prime factors of 9915 and 9924, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9915 and 9924.

How to find the GCF of 9915 and 9924?

We will first find the prime factorization of 9915 and 9924. After we will calculate the factors of 9915 and 9924 and find the biggest common factor number .

Step-1: Prime Factorization of 9915

Prime factors of 9915 are 3, 5, 661. Prime factorization of 9915 in exponential form is:

9915 = 3¹ × 5¹ × 661¹

Step-2: Prime Factorization of 9924

Prime factors of 9924 are 2, 3, 827. Prime factorization of 9924 in exponential form is:

9924 = 2² × 3¹ × 827¹

Step-3: Factors of 9915

List of positive integer factors of 9915 that divides 9915 without a remainder.

1, 3, 5, 15, 661, 1983, 3305

Step-4: Factors of 9924

List of positive integer factors of 9924 that divides 9915 without a remainder.

1, 2, 3, 4, 6, 12, 827, 1654, 2481, 3308, 4962

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9915 and 9924. The biggest common factor number is the GCF number.
So the greatest common factor 9915 and 9924 is 3.

Also check out the Least Common Multiple of 9915 and 9924