What is the Greatest Common Factor of 2859 and 2865?

Greatest common factor (GCF) of 2859 and 2865 is 3.

GCF(2859,2865) = 3

We will now calculate the prime factors of 2859 and 2865, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2859 and 2865.

How to find the GCF of 2859 and 2865?

We will first find the prime factorization of 2859 and 2865. After we will calculate the factors of 2859 and 2865 and find the biggest common factor number .

Step-1: Prime Factorization of 2859

Prime factors of 2859 are 3, 953. Prime factorization of 2859 in exponential form is:

2859 = 3¹ × 953¹

Step-2: Prime Factorization of 2865

Prime factors of 2865 are 3, 5, 191. Prime factorization of 2865 in exponential form is:

2865 = 3¹ × 5¹ × 191¹

Step-3: Factors of 2859

List of positive integer factors of 2859 that divides 2859 without a remainder.

1, 3, 953

Step-4: Factors of 2865

List of positive integer factors of 2865 that divides 2859 without a remainder.

1, 3, 5, 15, 191, 573, 955

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2859 and 2865. The biggest common factor number is the GCF number.
So the greatest common factor 2859 and 2865 is 3.

Also check out the Least Common Multiple of 2859 and 2865