What is the Greatest Common Factor of 9921 and 9925?

Greatest common factor (GCF) of 9921 and 9925 is 1.

GCF(9921,9925) = 1

We will now calculate the prime factors of 9921 and 9925, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9921 and 9925.

How to find the GCF of 9921 and 9925?

We will first find the prime factorization of 9921 and 9925. After we will calculate the factors of 9921 and 9925 and find the biggest common factor number .

Step-1: Prime Factorization of 9921

Prime factors of 9921 are 3, 3307. Prime factorization of 9921 in exponential form is:

9921 = 3¹ × 3307¹

Step-2: Prime Factorization of 9925

Prime factors of 9925 are 5, 397. Prime factorization of 9925 in exponential form is:

9925 = 5² × 397¹

Step-3: Factors of 9921

List of positive integer factors of 9921 that divides 9921 without a remainder.

1, 3, 3307

Step-4: Factors of 9925

List of positive integer factors of 9925 that divides 9921 without a remainder.

1, 5, 25, 397, 1985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9921 and 9925. The biggest common factor number is the GCF number.
So the greatest common factor 9921 and 9925 is 1.

Also check out the Least Common Multiple of 9921 and 9925