What is the Greatest Common Factor of 85855 and 85865?

Greatest common factor (GCF) of 85855 and 85865 is 5.

GCF(85855,85865) = 5

We will now calculate the prime factors of 85855 and 85865, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85855 and 85865.

How to find the GCF of 85855 and 85865?

We will first find the prime factorization of 85855 and 85865. After we will calculate the factors of 85855 and 85865 and find the biggest common factor number .

Step-1: Prime Factorization of 85855

Prime factors of 85855 are 5, 7, 11, 223. Prime factorization of 85855 in exponential form is:

85855 = 5¹ × 7¹ × 11¹ × 223¹

Step-2: Prime Factorization of 85865

Prime factors of 85865 are 5, 13, 1321. Prime factorization of 85865 in exponential form is:

85865 = 5¹ × 13¹ × 1321¹

Step-3: Factors of 85855

List of positive integer factors of 85855 that divides 85855 without a remainder.

1, 5, 7, 11, 35, 55, 77, 223, 385, 1115, 1561, 2453, 7805, 12265, 17171

Step-4: Factors of 85865

List of positive integer factors of 85865 that divides 85855 without a remainder.

1, 5, 13, 65, 1321, 6605, 17173

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85855 and 85865. The biggest common factor number is the GCF number.
So the greatest common factor 85855 and 85865 is 5.

Also check out the Least Common Multiple of 85855 and 85865