What is the Greatest Common Factor of 85623 and 85638?

Greatest common factor (GCF) of 85623 and 85638 is 3.

GCF(85623,85638) = 3

We will now calculate the prime factors of 85623 and 85638, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85623 and 85638.

How to find the GCF of 85623 and 85638?

We will first find the prime factorization of 85623 and 85638. After we will calculate the factors of 85623 and 85638 and find the biggest common factor number .

Step-1: Prime Factorization of 85623

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

85623 = 3¹ × 28541¹

Step-2: Prime Factorization of 85638

Prime factors of 85638 are 2, 3, 7, 2039. Prime factorization of 85638 in exponential form is:

85638 = 2¹ × 3¹ × 7¹ × 2039¹

Step-3: Factors of 85623

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

1, 3, 28541

Step-4: Factors of 85638

List of positive integer factors of 85638 that divides 85623 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 2039, 4078, 6117, 12234, 14273, 28546, 42819

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85623 and 85638. The biggest common factor number is the GCF number.
So the greatest common factor 85623 and 85638 is 3.

Also check out the Least Common Multiple of 85623 and 85638