What is the Greatest Common Factor of 4959 and 4978?

Greatest common factor (GCF) of 4959 and 4978 is 19.

GCF(4959,4978) = 19

We will now calculate the prime factors of 4959 and 4978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4959 and 4978.

How to find the GCF of 4959 and 4978?

We will first find the prime factorization of 4959 and 4978. After we will calculate the factors of 4959 and 4978 and find the biggest common factor number .

Step-1: Prime Factorization of 4959

Prime factors of 4959 are 3, 19, 29. Prime factorization of 4959 in exponential form is:

4959 = 3² × 19¹ × 29¹

Step-2: 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-3: Factors of 4959

List of positive integer factors of 4959 that divides 4959 without a remainder.

1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653

Step-4: Factors of 4978

List of positive integer factors of 4978 that divides 4959 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4959 and 4978. The biggest common factor number is the GCF number.
So the greatest common factor 4959 and 4978 is 19.

Also check out the Least Common Multiple of 4959 and 4978