What is the Greatest Common Factor of 42243 and 42257?

Greatest common factor (GCF) of 42243 and 42257 is 1.

GCF(42243,42257) = 1

We will now calculate the prime factors of 42243 and 42257, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42243 and 42257.

How to find the GCF of 42243 and 42257?

We will first find the prime factorization of 42243 and 42257. After we will calculate the factors of 42243 and 42257 and find the biggest common factor number .

Step-1: Prime Factorization of 42243

Prime factors of 42243 are 3, 14081. Prime factorization of 42243 in exponential form is:

42243 = 3¹ × 14081¹

Step-2: Prime Factorization of 42257

Prime factors of 42257 are 42257. Prime factorization of 42257 in exponential form is:

42257 = 42257¹

Step-3: Factors of 42243

List of positive integer factors of 42243 that divides 42243 without a remainder.

1, 3, 14081

Step-4: Factors of 42257

List of positive integer factors of 42257 that divides 42243 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42243 and 42257. The biggest common factor number is the GCF number.
So the greatest common factor 42243 and 42257 is 1.

Also check out the Least Common Multiple of 42243 and 42257