What is the Greatest Common Factor of 4985 and 4989?

Greatest common factor (GCF) of 4985 and 4989 is 1.

GCF(4985,4989) = 1

We will now calculate the prime factors of 4985 and 4989, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4985 and 4989.

How to find the GCF of 4985 and 4989?

We will first find the prime factorization of 4985 and 4989. After we will calculate the factors of 4985 and 4989 and find the biggest common factor number .

Step-1: Prime Factorization of 4985

Prime factors of 4985 are 5, 997. Prime factorization of 4985 in exponential form is:

4985 = 5¹ × 997¹

Step-2: Prime Factorization of 4989

Prime factors of 4989 are 3, 1663. Prime factorization of 4989 in exponential form is:

4989 = 3¹ × 1663¹

Step-3: Factors of 4985

List of positive integer factors of 4985 that divides 4985 without a remainder.

1, 5, 997

Step-4: Factors of 4989

List of positive integer factors of 4989 that divides 4985 without a remainder.

1, 3, 1663

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4985 and 4989. The biggest common factor number is the GCF number.
So the greatest common factor 4985 and 4989 is 1.

Also check out the Least Common Multiple of 4985 and 4989