What is the Greatest Common Factor of 85421 and 85437?

Greatest common factor (GCF) of 85421 and 85437 is 1.

GCF(85421,85437) = 1

We will now calculate the prime factors of 85421 and 85437, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85421 and 85437.

How to find the GCF of 85421 and 85437?

We will first find the prime factorization of 85421 and 85437. After we will calculate the factors of 85421 and 85437 and find the biggest common factor number .

Step-1: Prime Factorization of 85421

Prime factors of 85421 are 7, 12203. Prime factorization of 85421 in exponential form is:

85421 = 7¹ × 12203¹

Step-2: Prime Factorization of 85437

Prime factors of 85437 are 3, 11, 863. Prime factorization of 85437 in exponential form is:

85437 = 3² × 11¹ × 863¹

Step-3: Factors of 85421

List of positive integer factors of 85421 that divides 85421 without a remainder.

1, 7, 12203

Step-4: Factors of 85437

List of positive integer factors of 85437 that divides 85421 without a remainder.

1, 3, 9, 11, 33, 99, 863, 2589, 7767, 9493, 28479

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85421 and 85437. The biggest common factor number is the GCF number.
So the greatest common factor 85421 and 85437 is 1.

Also check out the Least Common Multiple of 85421 and 85437