What is the Greatest Common Factor of 2856 and 2871?

Greatest common factor (GCF) of 2856 and 2871 is 3.

GCF(2856,2871) = 3

We will now calculate the prime factors of 2856 and 2871, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2856 and 2871.

How to find the GCF of 2856 and 2871?

We will first find the prime factorization of 2856 and 2871. After we will calculate the factors of 2856 and 2871 and find the biggest common factor number .

Step-1: Prime Factorization of 2856

Prime factors of 2856 are 2, 3, 7, 17. Prime factorization of 2856 in exponential form is:

2856 = 2³ × 3¹ × 7¹ × 17¹

Step-2: Prime Factorization of 2871

Prime factors of 2871 are 3, 11, 29. Prime factorization of 2871 in exponential form is:

2871 = 3² × 11¹ × 29¹

Step-3: Factors of 2856

List of positive integer factors of 2856 that divides 2856 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428

Step-4: Factors of 2871

List of positive integer factors of 2871 that divides 2856 without a remainder.

1, 3, 9, 11, 29, 33, 87, 99, 261, 319, 957

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2856 and 2871. The biggest common factor number is the GCF number.
So the greatest common factor 2856 and 2871 is 3.

Also check out the Least Common Multiple of 2856 and 2871