What is the Greatest Common Factor of 42558 and 42573?

Greatest common factor (GCF) of 42558 and 42573 is 3.

GCF(42558,42573) = 3

We will now calculate the prime factors of 42558 and 42573, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42558 and 42573.

How to find the GCF of 42558 and 42573?

We will first find the prime factorization of 42558 and 42573. After we will calculate the factors of 42558 and 42573 and find the biggest common factor number .

Step-1: Prime Factorization of 42558

Prime factors of 42558 are 2, 3, 41, 173. Prime factorization of 42558 in exponential form is:

42558 = 2¹ × 3¹ × 41¹ × 173¹

Step-2: Prime Factorization of 42573

Prime factors of 42573 are 3, 23, 617. Prime factorization of 42573 in exponential form is:

42573 = 3¹ × 23¹ × 617¹

Step-3: Factors of 42558

List of positive integer factors of 42558 that divides 42558 without a remainder.

1, 2, 3, 6, 41, 82, 123, 173, 246, 346, 519, 1038, 7093, 14186, 21279

Step-4: Factors of 42573

List of positive integer factors of 42573 that divides 42558 without a remainder.

1, 3, 23, 69, 617, 1851, 14191

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42558 and 42573. The biggest common factor number is the GCF number.
So the greatest common factor 42558 and 42573 is 3.

Also check out the Least Common Multiple of 42558 and 42573