What is the Greatest Common Factor of 81892 and 81908?

Greatest common factor (GCF) of 81892 and 81908 is 4.

GCF(81892,81908) = 4

We will now calculate the prime factors of 81892 and 81908, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81892 and 81908.

How to find the GCF of 81892 and 81908?

We will first find the prime factorization of 81892 and 81908. After we will calculate the factors of 81892 and 81908 and find the biggest common factor number .

Step-1: Prime Factorization of 81892

Prime factors of 81892 are 2, 59, 347. Prime factorization of 81892 in exponential form is:

81892 = 2² × 59¹ × 347¹

Step-2: Prime Factorization of 81908

Prime factors of 81908 are 2, 20477. Prime factorization of 81908 in exponential form is:

81908 = 2² × 20477¹

Step-3: Factors of 81892

List of positive integer factors of 81892 that divides 81892 without a remainder.

1, 2, 4, 59, 118, 236, 347, 694, 1388, 20473, 40946

Step-4: Factors of 81908

List of positive integer factors of 81908 that divides 81892 without a remainder.

1, 2, 4, 20477, 40954

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81892 and 81908. The biggest common factor number is the GCF number.
So the greatest common factor 81892 and 81908 is 4.

Also check out the Least Common Multiple of 81892 and 81908