What is the Greatest Common Factor of 85870 and 85885?

Greatest common factor (GCF) of 85870 and 85885 is 5.

GCF(85870,85885) = 5

We will now calculate the prime factors of 85870 and 85885, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85870 and 85885.

How to find the GCF of 85870 and 85885?

We will first find the prime factorization of 85870 and 85885. After we will calculate the factors of 85870 and 85885 and find the biggest common factor number .

Step-1: Prime Factorization of 85870

Prime factors of 85870 are 2, 5, 31, 277. Prime factorization of 85870 in exponential form is:

85870 = 2¹ × 5¹ × 31¹ × 277¹

Step-2: Prime Factorization of 85885

Prime factors of 85885 are 5, 89, 193. Prime factorization of 85885 in exponential form is:

85885 = 5¹ × 89¹ × 193¹

Step-3: Factors of 85870

List of positive integer factors of 85870 that divides 85870 without a remainder.

1, 2, 5, 10, 31, 62, 155, 277, 310, 554, 1385, 2770, 8587, 17174, 42935

Step-4: Factors of 85885

List of positive integer factors of 85885 that divides 85870 without a remainder.

1, 5, 89, 193, 445, 965, 17177

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85870 and 85885. The biggest common factor number is the GCF number.
So the greatest common factor 85870 and 85885 is 5.

Also check out the Least Common Multiple of 85870 and 85885