What is the Greatest Common Factor of 6816 and 6820?

Greatest common factor (GCF) of 6816 and 6820 is 4.

GCF(6816,6820) = 4

We will now calculate the prime factors of 6816 and 6820, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6816 and 6820.

How to find the GCF of 6816 and 6820?

We will first find the prime factorization of 6816 and 6820. After we will calculate the factors of 6816 and 6820 and find the biggest common factor number .

Step-1: Prime Factorization of 6816

Prime factors of 6816 are 2, 3, 71. Prime factorization of 6816 in exponential form is:

6816 = 2⁵ × 3¹ × 71¹

Step-2: Prime Factorization of 6820

Prime factors of 6820 are 2, 5, 11, 31. Prime factorization of 6820 in exponential form is:

6820 = 2² × 5¹ × 11¹ × 31¹

Step-3: Factors of 6816

List of positive integer factors of 6816 that divides 6816 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 71, 96, 142, 213, 284, 426, 568, 852, 1136, 1704, 2272, 3408

Step-4: Factors of 6820

List of positive integer factors of 6820 that divides 6816 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6816 and 6820. The biggest common factor number is the GCF number.
So the greatest common factor 6816 and 6820 is 4.

Also check out the Least Common Multiple of 6816 and 6820