What is the Greatest Common Factor of 18542 and 18556?

Greatest common factor (GCF) of 18542 and 18556 is 2.

GCF(18542,18556) = 2

We will now calculate the prime factors of 18542 and 18556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18542 and 18556.

How to find the GCF of 18542 and 18556?

We will first find the prime factorization of 18542 and 18556. After we will calculate the factors of 18542 and 18556 and find the biggest common factor number .

Step-1: Prime Factorization of 18542

Prime factors of 18542 are 2, 73, 127. Prime factorization of 18542 in exponential form is:

18542 = 2¹ × 73¹ × 127¹

Step-2: Prime Factorization of 18556

Prime factors of 18556 are 2, 4639. Prime factorization of 18556 in exponential form is:

18556 = 2² × 4639¹

Step-3: Factors of 18542

List of positive integer factors of 18542 that divides 18542 without a remainder.

1, 2, 73, 127, 146, 254, 9271

Step-4: Factors of 18556

List of positive integer factors of 18556 that divides 18542 without a remainder.

1, 2, 4, 4639, 9278

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18542 and 18556. The biggest common factor number is the GCF number.
So the greatest common factor 18542 and 18556 is 2.

Also check out the Least Common Multiple of 18542 and 18556