What is the Greatest Common Factor of 81208 and 81218?

Greatest common factor (GCF) of 81208 and 81218 is 2.

GCF(81208,81218) = 2

We will now calculate the prime factors of 81208 and 81218, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81208 and 81218.

How to find the GCF of 81208 and 81218?

We will first find the prime factorization of 81208 and 81218. After we will calculate the factors of 81208 and 81218 and find the biggest common factor number .

Step-1: Prime Factorization of 81208

Prime factors of 81208 are 2, 10151. Prime factorization of 81208 in exponential form is:

81208 = 2³ × 10151¹

Step-2: Prime Factorization of 81218

Prime factors of 81218 are 2, 40609. Prime factorization of 81218 in exponential form is:

81218 = 2¹ × 40609¹

Step-3: Factors of 81208

List of positive integer factors of 81208 that divides 81208 without a remainder.

1, 2, 4, 8, 10151, 20302, 40604

Step-4: Factors of 81218

List of positive integer factors of 81218 that divides 81208 without a remainder.

1, 2, 40609

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81208 and 81218. The biggest common factor number is the GCF number.
So the greatest common factor 81208 and 81218 is 2.

Also check out the Least Common Multiple of 81208 and 81218