What is the Greatest Common Factor of 87105 and 87111?

Greatest common factor (GCF) of 87105 and 87111 is 3.

GCF(87105,87111) = 3

We will now calculate the prime factors of 87105 and 87111, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87105 and 87111.

How to find the GCF of 87105 and 87111?

We will first find the prime factorization of 87105 and 87111. After we will calculate the factors of 87105 and 87111 and find the biggest common factor number .

Step-1: Prime Factorization of 87105

Prime factors of 87105 are 3, 5, 5807. Prime factorization of 87105 in exponential form is:

87105 = 3¹ × 5¹ × 5807¹

Step-2: Prime Factorization of 87111

Prime factors of 87111 are 3, 9679. Prime factorization of 87111 in exponential form is:

87111 = 3² × 9679¹

Step-3: Factors of 87105

List of positive integer factors of 87105 that divides 87105 without a remainder.

1, 3, 5, 15, 5807, 17421, 29035

Step-4: Factors of 87111

List of positive integer factors of 87111 that divides 87105 without a remainder.

1, 3, 9, 9679, 29037

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87105 and 87111. The biggest common factor number is the GCF number.
So the greatest common factor 87105 and 87111 is 3.

Also check out the Least Common Multiple of 87105 and 87111