What is the Greatest Common Factor of 42998 and 43018?

Greatest common factor (GCF) of 42998 and 43018 is 2.

GCF(42998,43018) = 2

We will now calculate the prime factors of 42998 and 43018, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42998 and 43018.

How to find the GCF of 42998 and 43018?

We will first find the prime factorization of 42998 and 43018. After we will calculate the factors of 42998 and 43018 and find the biggest common factor number .

Step-1: Prime Factorization of 42998

Prime factors of 42998 are 2, 21499. Prime factorization of 42998 in exponential form is:

42998 = 2¹ × 21499¹

Step-2: Prime Factorization of 43018

Prime factors of 43018 are 2, 137, 157. Prime factorization of 43018 in exponential form is:

43018 = 2¹ × 137¹ × 157¹

Step-3: Factors of 42998

List of positive integer factors of 42998 that divides 42998 without a remainder.

1, 2, 21499

Step-4: Factors of 43018

List of positive integer factors of 43018 that divides 42998 without a remainder.

1, 2, 137, 157, 274, 314, 21509

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42998 and 43018. The biggest common factor number is the GCF number.
So the greatest common factor 42998 and 43018 is 2.

Also check out the Least Common Multiple of 42998 and 43018