What is the Greatest Common Factor of 4978 and 4986?

Greatest common factor (GCF) of 4978 and 4986 is 2.

GCF(4978,4986) = 2

We will now calculate the prime factors of 4978 and 4986, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4978 and 4986.

How to find the GCF of 4978 and 4986?

We will first find the prime factorization of 4978 and 4986. After we will calculate the factors of 4978 and 4986 and find the biggest common factor number .

Step-1: Prime Factorization of 4978

Prime factors of 4978 are 2, 19, 131. Prime factorization of 4978 in exponential form is:

4978 = 2¹ × 19¹ × 131¹

Step-2: Prime Factorization of 4986

Prime factors of 4986 are 2, 3, 277. Prime factorization of 4986 in exponential form is:

4986 = 2¹ × 3² × 277¹

Step-3: Factors of 4978

List of positive integer factors of 4978 that divides 4978 without a remainder.

1, 2, 19, 38, 131, 262, 2489

Step-4: Factors of 4986

List of positive integer factors of 4986 that divides 4978 without a remainder.

1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4978 and 4986. The biggest common factor number is the GCF number.
So the greatest common factor 4978 and 4986 is 2.

Also check out the Least Common Multiple of 4978 and 4986