What is the Greatest Common Factor of 85924 and 85940?

Greatest common factor (GCF) of 85924 and 85940 is 4.

GCF(85924,85940) = 4

We will now calculate the prime factors of 85924 and 85940, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85924 and 85940.

How to find the GCF of 85924 and 85940?

We will first find the prime factorization of 85924 and 85940. After we will calculate the factors of 85924 and 85940 and find the biggest common factor number .

Step-1: Prime Factorization of 85924

Prime factors of 85924 are 2, 21481. Prime factorization of 85924 in exponential form is:

85924 = 2² × 21481¹

Step-2: Prime Factorization of 85940

Prime factors of 85940 are 2, 5, 4297. Prime factorization of 85940 in exponential form is:

85940 = 2² × 5¹ × 4297¹

Step-3: Factors of 85924

List of positive integer factors of 85924 that divides 85924 without a remainder.

1, 2, 4, 21481, 42962

Step-4: Factors of 85940

List of positive integer factors of 85940 that divides 85924 without a remainder.

1, 2, 4, 5, 10, 20, 4297, 8594, 17188, 21485, 42970

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85924 and 85940. The biggest common factor number is the GCF number.
So the greatest common factor 85924 and 85940 is 4.

Also check out the Least Common Multiple of 85924 and 85940