What is the Greatest Common Factor of 39855 and 39873?

Greatest common factor (GCF) of 39855 and 39873 is 3.

GCF(39855,39873) = 3

We will now calculate the prime factors of 39855 and 39873, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39855 and 39873.

How to find the GCF of 39855 and 39873?

We will first find the prime factorization of 39855 and 39873. After we will calculate the factors of 39855 and 39873 and find the biggest common factor number .

Step-1: Prime Factorization of 39855

Prime factors of 39855 are 3, 5, 2657. Prime factorization of 39855 in exponential form is:

39855 = 3¹ × 5¹ × 2657¹

Step-2: Prime Factorization of 39873

Prime factors of 39873 are 3, 13291. Prime factorization of 39873 in exponential form is:

39873 = 3¹ × 13291¹

Step-3: Factors of 39855

List of positive integer factors of 39855 that divides 39855 without a remainder.

1, 3, 5, 15, 2657, 7971, 13285

Step-4: Factors of 39873

List of positive integer factors of 39873 that divides 39855 without a remainder.

1, 3, 13291

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39855 and 39873. The biggest common factor number is the GCF number.
So the greatest common factor 39855 and 39873 is 3.

Also check out the Least Common Multiple of 39855 and 39873