What is the Greatest Common Factor of 10855 and 10870?

Greatest common factor (GCF) of 10855 and 10870 is 5.

GCF(10855,10870) = 5

We will now calculate the prime factors of 10855 and 10870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10855 and 10870.

How to find the GCF of 10855 and 10870?

We will first find the prime factorization of 10855 and 10870. After we will calculate the factors of 10855 and 10870 and find the biggest common factor number .

Step-1: Prime Factorization of 10855

Prime factors of 10855 are 5, 13, 167. Prime factorization of 10855 in exponential form is:

10855 = 5¹ × 13¹ × 167¹

Step-2: Prime Factorization of 10870

Prime factors of 10870 are 2, 5, 1087. Prime factorization of 10870 in exponential form is:

10870 = 2¹ × 5¹ × 1087¹

Step-3: Factors of 10855

List of positive integer factors of 10855 that divides 10855 without a remainder.

1, 5, 13, 65, 167, 835, 2171

Step-4: Factors of 10870

List of positive integer factors of 10870 that divides 10855 without a remainder.

1, 2, 5, 10, 1087, 2174, 5435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10855 and 10870. The biggest common factor number is the GCF number.
So the greatest common factor 10855 and 10870 is 5.

Also check out the Least Common Multiple of 10855 and 10870