What is the Greatest Common Factor of 27963 and 27978?

Greatest common factor (GCF) of 27963 and 27978 is 3.

GCF(27963,27978) = 3

We will now calculate the prime factors of 27963 and 27978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27963 and 27978.

How to find the GCF of 27963 and 27978?

We will first find the prime factorization of 27963 and 27978. After we will calculate the factors of 27963 and 27978 and find the biggest common factor number .

Step-1: Prime Factorization of 27963

Prime factors of 27963 are 3, 13, 239. Prime factorization of 27963 in exponential form is:

27963 = 3² × 13¹ × 239¹

Step-2: Prime Factorization of 27978

Prime factors of 27978 are 2, 3, 4663. Prime factorization of 27978 in exponential form is:

27978 = 2¹ × 3¹ × 4663¹

Step-3: Factors of 27963

List of positive integer factors of 27963 that divides 27963 without a remainder.

1, 3, 9, 13, 39, 117, 239, 717, 2151, 3107, 9321

Step-4: Factors of 27978

List of positive integer factors of 27978 that divides 27963 without a remainder.

1, 2, 3, 6, 4663, 9326, 13989

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27963 and 27978. The biggest common factor number is the GCF number.
So the greatest common factor 27963 and 27978 is 3.

Also check out the Least Common Multiple of 27963 and 27978