What is the Greatest Common Factor of 9977 and 9987?

Greatest common factor (GCF) of 9977 and 9987 is 1.

GCF(9977,9987) = 1

We will now calculate the prime factors of 9977 and 9987, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9977 and 9987.

How to find the GCF of 9977 and 9987?

We will first find the prime factorization of 9977 and 9987. After we will calculate the factors of 9977 and 9987 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 9987

Prime factors of 9987 are 3, 3329. Prime factorization of 9987 in exponential form is:

9987 = 3¹ × 3329¹

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 9987

List of positive integer factors of 9987 that divides 9977 without a remainder.

1, 3, 3329

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9977 and 9987. The biggest common factor number is the GCF number.
So the greatest common factor 9977 and 9987 is 1.

Also check out the Least Common Multiple of 9977 and 9987