What is the Greatest Common Factor of 42057 and 42063?

Greatest common factor (GCF) of 42057 and 42063 is 3.

GCF(42057,42063) = 3

We will now calculate the prime factors of 42057 and 42063, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42057 and 42063.

How to find the GCF of 42057 and 42063?

We will first find the prime factorization of 42057 and 42063. After we will calculate the factors of 42057 and 42063 and find the biggest common factor number .

Step-1: Prime Factorization of 42057

Prime factors of 42057 are 3, 4673. Prime factorization of 42057 in exponential form is:

42057 = 3² × 4673¹

Step-2: Prime Factorization of 42063

Prime factors of 42063 are 3, 7, 2003. Prime factorization of 42063 in exponential form is:

42063 = 3¹ × 7¹ × 2003¹

Step-3: Factors of 42057

List of positive integer factors of 42057 that divides 42057 without a remainder.

1, 3, 9, 4673, 14019

Step-4: Factors of 42063

List of positive integer factors of 42063 that divides 42057 without a remainder.

1, 3, 7, 21, 2003, 6009, 14021

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42057 and 42063. The biggest common factor number is the GCF number.
So the greatest common factor 42057 and 42063 is 3.

Also check out the Least Common Multiple of 42057 and 42063