What is the Greatest Common Factor of 42124 and 42138?

Greatest common factor (GCF) of 42124 and 42138 is 2.

GCF(42124,42138) = 2

We will now calculate the prime factors of 42124 and 42138, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42124 and 42138.

How to find the GCF of 42124 and 42138?

We will first find the prime factorization of 42124 and 42138. After we will calculate the factors of 42124 and 42138 and find the biggest common factor number .

Step-1: Prime Factorization of 42124

Prime factors of 42124 are 2, 10531. Prime factorization of 42124 in exponential form is:

42124 = 2² × 10531¹

Step-2: Prime Factorization of 42138

Prime factors of 42138 are 2, 3, 2341. Prime factorization of 42138 in exponential form is:

42138 = 2¹ × 3² × 2341¹

Step-3: Factors of 42124

List of positive integer factors of 42124 that divides 42124 without a remainder.

1, 2, 4, 10531, 21062

Step-4: Factors of 42138

List of positive integer factors of 42138 that divides 42124 without a remainder.

1, 2, 3, 6, 9, 18, 2341, 4682, 7023, 14046, 21069

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42124 and 42138. The biggest common factor number is the GCF number.
So the greatest common factor 42124 and 42138 is 2.

Also check out the Least Common Multiple of 42124 and 42138