What is the Greatest Common Factor of 60855 and 60870?

Greatest common factor (GCF) of 60855 and 60870 is 15.

GCF(60855,60870) = 15

We will now calculate the prime factors of 60855 and 60870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 60855 and 60870.

How to find the GCF of 60855 and 60870?

We will first find the prime factorization of 60855 and 60870. After we will calculate the factors of 60855 and 60870 and find the biggest common factor number .

Step-1: Prime Factorization of 60855

Prime factors of 60855 are 3, 5, 4057. Prime factorization of 60855 in exponential form is:

60855 = 3¹ × 5¹ × 4057¹

Step-2: Prime Factorization of 60870

Prime factors of 60870 are 2, 3, 5, 2029. Prime factorization of 60870 in exponential form is:

60870 = 2¹ × 3¹ × 5¹ × 2029¹

Step-3: Factors of 60855

List of positive integer factors of 60855 that divides 60855 without a remainder.

1, 3, 5, 15, 4057, 12171, 20285

Step-4: Factors of 60870

List of positive integer factors of 60870 that divides 60855 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2029, 4058, 6087, 10145, 12174, 20290, 30435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 60855 and 60870. The biggest common factor number is the GCF number.
So the greatest common factor 60855 and 60870 is 15.

Also check out the Least Common Multiple of 60855 and 60870