What is the Greatest Common Factor of 66859 and 66872?

Greatest common factor (GCF) of 66859 and 66872 is 13.

GCF(66859,66872) = 13

We will now calculate the prime factors of 66859 and 66872, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66859 and 66872.

How to find the GCF of 66859 and 66872?

We will first find the prime factorization of 66859 and 66872. After we will calculate the factors of 66859 and 66872 and find the biggest common factor number .

Step-1: Prime Factorization of 66859

Prime factors of 66859 are 13, 37, 139. Prime factorization of 66859 in exponential form is:

66859 = 13¹ × 37¹ × 139¹

Step-2: Prime Factorization of 66872

Prime factors of 66872 are 2, 13, 643. Prime factorization of 66872 in exponential form is:

66872 = 2³ × 13¹ × 643¹

Step-3: Factors of 66859

List of positive integer factors of 66859 that divides 66859 without a remainder.

1, 13, 37, 139, 481, 1807, 5143

Step-4: Factors of 66872

List of positive integer factors of 66872 that divides 66859 without a remainder.

1, 2, 4, 8, 13, 26, 52, 104, 643, 1286, 2572, 5144, 8359, 16718, 33436

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66859 and 66872. The biggest common factor number is the GCF number.
So the greatest common factor 66859 and 66872 is 13.

Also check out the Least Common Multiple of 66859 and 66872