What is the Greatest Common Factor of 9977 and 9988?

Greatest common factor (GCF) of 9977 and 9988 is 11.

GCF(9977,9988) = 11

We will now calculate the prime factors of 9977 and 9988, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9977 and 9988.

How to find the GCF of 9977 and 9988?

We will first find the prime factorization of 9977 and 9988. After we will calculate the factors of 9977 and 9988 and find the biggest common factor number .

Step-1: Prime Factorization of 9977

Prime factors of 9977 are 11, 907. Prime factorization of 9977 in exponential form is:

9977 = 11¹ × 907¹

Step-2: Prime Factorization of 9988

Prime factors of 9988 are 2, 11, 227. Prime factorization of 9988 in exponential form is:

9988 = 2² × 11¹ × 227¹

Step-3: Factors of 9977

List of positive integer factors of 9977 that divides 9977 without a remainder.

1, 11, 907

Step-4: Factors of 9988

List of positive integer factors of 9988 that divides 9977 without a remainder.

1, 2, 4, 11, 22, 44, 227, 454, 908, 2497, 4994

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9977 and 9988. The biggest common factor number is the GCF number.
So the greatest common factor 9977 and 9988 is 11.

Also check out the Least Common Multiple of 9977 and 9988