Online Calculators > Math Calculators
GCF of 558 and 620
What is the GCF of 558 and 620? - The GCF of 558 and 620 is 62.
Follow the step by step instructions on how to find the great common factor of 558 and 620.
What is the greatest common factor of 558 and 620?
How to find the gcf of 558 and 620?
Method 1 - Listing Factors
To find the gcf of 558 and 620, we first need to find the factors of 558 and 620 and then choose the greatest common factor that are dividable by both 558 and 620.
Factors of 558 = 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
Factors of 620 = 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
The greatest common factor of 558 and 620 is 62, because 62 is the largest number that is divisible by both numbers.
Method 2 - Prime Factorization
Another method to find the greatest common factor of 558 and 620 is by using the prime factorization method.
To use prime factorization, we first need to find the prime factors of 558 and 620, and then get the GCF by multiplying all the common prime factors from the two sets.
Prime factorization of 558 = 2 x 3 x 3 x 31
Prime factorization of 620 = 2 x 2 x 5 x 31
Common prime factors = 2 x 31 = 62
GCF of 557 and 620
GCF of 559 and 620
GCF of 558 and 621
GCF of 558 and 619
|