What is the Greatest Common Factor of 28911 and 28929?

Greatest common factor (GCF) of 28911 and 28929 is 3.

GCF(28911,28929) = 3

We will now calculate the prime factors of 28911 and 28929, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28911 and 28929.

How to find the GCF of 28911 and 28929?

We will first find the prime factorization of 28911 and 28929. After we will calculate the factors of 28911 and 28929 and find the biggest common factor number .

Step-1: Prime Factorization of 28911

Prime factors of 28911 are 3, 23, 419. Prime factorization of 28911 in exponential form is:

28911 = 3¹ × 23¹ × 419¹

Step-2: Prime Factorization of 28929

Prime factors of 28929 are 3, 9643. Prime factorization of 28929 in exponential form is:

28929 = 3¹ × 9643¹

Step-3: Factors of 28911

List of positive integer factors of 28911 that divides 28911 without a remainder.

1, 3, 23, 69, 419, 1257, 9637

Step-4: Factors of 28929

List of positive integer factors of 28929 that divides 28911 without a remainder.

1, 3, 9643

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28911 and 28929. The biggest common factor number is the GCF number.
So the greatest common factor 28911 and 28929 is 3.

Also check out the Least Common Multiple of 28911 and 28929