What is the Greatest Common Factor of 85420 and 85439?

Greatest common factor (GCF) of 85420 and 85439 is 1.

GCF(85420,85439) = 1

We will now calculate the prime factors of 85420 and 85439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85420 and 85439.

How to find the GCF of 85420 and 85439?

We will first find the prime factorization of 85420 and 85439. After we will calculate the factors of 85420 and 85439 and find the biggest common factor number .

Step-1: Prime Factorization of 85420

Prime factors of 85420 are 2, 5, 4271. Prime factorization of 85420 in exponential form is:

85420 = 2² × 5¹ × 4271¹

Step-2: Prime Factorization of 85439

Prime factors of 85439 are 85439. Prime factorization of 85439 in exponential form is:

85439 = 85439¹

Step-3: Factors of 85420

List of positive integer factors of 85420 that divides 85420 without a remainder.

1, 2, 4, 5, 10, 20, 4271, 8542, 17084, 21355, 42710

Step-4: Factors of 85439

List of positive integer factors of 85439 that divides 85420 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85420 and 85439. The biggest common factor number is the GCF number.
So the greatest common factor 85420 and 85439 is 1.

Also check out the Least Common Multiple of 85420 and 85439