What is the Greatest Common Factor of 6870 and 6890?

Greatest common factor (GCF) of 6870 and 6890 is 10.

GCF(6870,6890) = 10

We will now calculate the prime factors of 6870 and 6890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6870 and 6890.

How to find the GCF of 6870 and 6890?

We will first find the prime factorization of 6870 and 6890. After we will calculate the factors of 6870 and 6890 and find the biggest common factor number .

Step-1: Prime Factorization of 6870

Prime factors of 6870 are 2, 3, 5, 229. Prime factorization of 6870 in exponential form is:

6870 = 2¹ × 3¹ × 5¹ × 229¹

Step-2: Prime Factorization of 6890

Prime factors of 6890 are 2, 5, 13, 53. Prime factorization of 6890 in exponential form is:

6890 = 2¹ × 5¹ × 13¹ × 53¹

Step-3: Factors of 6870

List of positive integer factors of 6870 that divides 6870 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 229, 458, 687, 1145, 1374, 2290, 3435

Step-4: Factors of 6890

List of positive integer factors of 6890 that divides 6870 without a remainder.

1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6870 and 6890. The biggest common factor number is the GCF number.
So the greatest common factor 6870 and 6890 is 10.

Also check out the Least Common Multiple of 6870 and 6890