What is the Greatest Common Factor of 85605 and 85623?

Greatest common factor (GCF) of 85605 and 85623 is 3.

GCF(85605,85623) = 3

We will now calculate the prime factors of 85605 and 85623, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85605 and 85623.

How to find the GCF of 85605 and 85623?

We will first find the prime factorization of 85605 and 85623. After we will calculate the factors of 85605 and 85623 and find the biggest common factor number .

Step-1: Prime Factorization of 85605

Prime factors of 85605 are 3, 5, 13, 439. Prime factorization of 85605 in exponential form is:

85605 = 3¹ × 5¹ × 13¹ × 439¹

Step-2: Prime Factorization of 85623

Prime factors of 85623 are 3, 28541. Prime factorization of 85623 in exponential form is:

85623 = 3¹ × 28541¹

Step-3: Factors of 85605

List of positive integer factors of 85605 that divides 85605 without a remainder.

1, 3, 5, 13, 15, 39, 65, 195, 439, 1317, 2195, 5707, 6585, 17121, 28535

Step-4: Factors of 85623

List of positive integer factors of 85623 that divides 85605 without a remainder.

1, 3, 28541

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85605 and 85623. The biggest common factor number is the GCF number.
So the greatest common factor 85605 and 85623 is 3.

Also check out the Least Common Multiple of 85605 and 85623