What is the Greatest Common Factor of 84855 and 84861?

Greatest common factor (GCF) of 84855 and 84861 is 3.

GCF(84855,84861) = 3

We will now calculate the prime factors of 84855 and 84861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 84855 and 84861.

How to find the GCF of 84855 and 84861?

We will first find the prime factorization of 84855 and 84861. After we will calculate the factors of 84855 and 84861 and find the biggest common factor number .

Step-1: Prime Factorization of 84855

Prime factors of 84855 are 3, 5, 5657. Prime factorization of 84855 in exponential form is:

84855 = 3¹ × 5¹ × 5657¹

Step-2: Prime Factorization of 84861

Prime factors of 84861 are 3, 7, 449. Prime factorization of 84861 in exponential form is:

84861 = 3³ × 7¹ × 449¹

Step-3: Factors of 84855

List of positive integer factors of 84855 that divides 84855 without a remainder.

1, 3, 5, 15, 5657, 16971, 28285

Step-4: Factors of 84861

List of positive integer factors of 84861 that divides 84855 without a remainder.

1, 3, 7, 9, 21, 27, 63, 189, 449, 1347, 3143, 4041, 9429, 12123, 28287

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 84855 and 84861. The biggest common factor number is the GCF number.
So the greatest common factor 84855 and 84861 is 3.

Also check out the Least Common Multiple of 84855 and 84861