What is the Greatest Common Factor of 80855 and 80870?

Greatest common factor (GCF) of 80855 and 80870 is 5.

GCF(80855,80870) = 5

We will now calculate the prime factors of 80855 and 80870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 80855 and 80870.

How to find the GCF of 80855 and 80870?

We will first find the prime factorization of 80855 and 80870. After we will calculate the factors of 80855 and 80870 and find the biggest common factor number .

Step-1: Prime Factorization of 80855

Prime factors of 80855 are 5, 103, 157. Prime factorization of 80855 in exponential form is:

80855 = 5¹ × 103¹ × 157¹

Step-2: Prime Factorization of 80870

Prime factors of 80870 are 2, 5, 8087. Prime factorization of 80870 in exponential form is:

80870 = 2¹ × 5¹ × 8087¹

Step-3: Factors of 80855

List of positive integer factors of 80855 that divides 80855 without a remainder.

1, 5, 103, 157, 515, 785, 16171

Step-4: Factors of 80870

List of positive integer factors of 80870 that divides 80855 without a remainder.

1, 2, 5, 10, 8087, 16174, 40435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 80855 and 80870. The biggest common factor number is the GCF number.
So the greatest common factor 80855 and 80870 is 5.

Also check out the Least Common Multiple of 80855 and 80870