What is the Greatest Common Factor of 81604 and 81608?

Greatest common factor (GCF) of 81604 and 81608 is 4.

GCF(81604,81608) = 4

We will now calculate the prime factors of 81604 and 81608, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81604 and 81608.

How to find the GCF of 81604 and 81608?

We will first find the prime factorization of 81604 and 81608. After we will calculate the factors of 81604 and 81608 and find the biggest common factor number .

Step-1: Prime Factorization of 81604

Prime factors of 81604 are 2, 23, 887. Prime factorization of 81604 in exponential form is:

81604 = 2² × 23¹ × 887¹

Step-2: Prime Factorization of 81608

Prime factors of 81608 are 2, 101. Prime factorization of 81608 in exponential form is:

81608 = 2³ × 101²

Step-3: Factors of 81604

List of positive integer factors of 81604 that divides 81604 without a remainder.

1, 2, 4, 23, 46, 92, 887, 1774, 3548, 20401, 40802

Step-4: Factors of 81608

List of positive integer factors of 81608 that divides 81604 without a remainder.

1, 2, 4, 8, 101, 202, 404, 808, 10201, 20402, 40804

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81604 and 81608. The biggest common factor number is the GCF number.
So the greatest common factor 81604 and 81608 is 4.

Also check out the Least Common Multiple of 81604 and 81608