What is the Greatest Common Factor of 56421 and 56439?

Greatest common factor (GCF) of 56421 and 56439 is 9.

GCF(56421,56439) = 9

We will now calculate the prime factors of 56421 and 56439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 56421 and 56439.

How to find the GCF of 56421 and 56439?

We will first find the prime factorization of 56421 and 56439. After we will calculate the factors of 56421 and 56439 and find the biggest common factor number .

Step-1: Prime Factorization of 56421

Prime factors of 56421 are 3, 6269. Prime factorization of 56421 in exponential form is:

56421 = 3² × 6269¹

Step-2: Prime Factorization of 56439

Prime factors of 56439 are 3, 6271. Prime factorization of 56439 in exponential form is:

56439 = 3² × 6271¹

Step-3: Factors of 56421

List of positive integer factors of 56421 that divides 56421 without a remainder.

1, 3, 9, 6269, 18807

Step-4: Factors of 56439

List of positive integer factors of 56439 that divides 56421 without a remainder.

1, 3, 9, 6271, 18813

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 56421 and 56439. The biggest common factor number is the GCF number.
So the greatest common factor 56421 and 56439 is 9.

Also check out the Least Common Multiple of 56421 and 56439