What is the Greatest Common Factor of 4985 and 4990?

Greatest common factor (GCF) of 4985 and 4990 is 5.

GCF(4985,4990) = 5

We will now calculate the prime factors of 4985 and 4990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4985 and 4990.

How to find the GCF of 4985 and 4990?

We will first find the prime factorization of 4985 and 4990. After we will calculate the factors of 4985 and 4990 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 4990

Prime factors of 4990 are 2, 5, 499. Prime factorization of 4990 in exponential form is:

4990 = 2¹ × 5¹ × 499¹

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 4990

List of positive integer factors of 4990 that divides 4985 without a remainder.

1, 2, 5, 10, 499, 998, 2495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4985 and 4990. The biggest common factor number is the GCF number.
So the greatest common factor 4985 and 4990 is 5.

Also check out the Least Common Multiple of 4985 and 4990