What is the Greatest Common Factor of 85791 and 85809?

Greatest common factor (GCF) of 85791 and 85809 is 3.

GCF(85791,85809) = 3

We will now calculate the prime factors of 85791 and 85809, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85791 and 85809.

How to find the GCF of 85791 and 85809?

We will first find the prime factorization of 85791 and 85809. After we will calculate the factors of 85791 and 85809 and find the biggest common factor number .

Step-1: Prime Factorization of 85791

Prime factors of 85791 are 3, 28597. Prime factorization of 85791 in exponential form is:

85791 = 3¹ × 28597¹

Step-2: Prime Factorization of 85809

Prime factors of 85809 are 3, 28603. Prime factorization of 85809 in exponential form is:

85809 = 3¹ × 28603¹

Step-3: Factors of 85791

List of positive integer factors of 85791 that divides 85791 without a remainder.

1, 3, 28597

Step-4: Factors of 85809

List of positive integer factors of 85809 that divides 85791 without a remainder.

1, 3, 28603

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85791 and 85809. The biggest common factor number is the GCF number.
So the greatest common factor 85791 and 85809 is 3.

Also check out the Least Common Multiple of 85791 and 85809