What is the Greatest Common Factor of 81504 and 81522?

Greatest common factor (GCF) of 81504 and 81522 is 18.

GCF(81504,81522) = 18

We will now calculate the prime factors of 81504 and 81522, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81504 and 81522.

How to find the GCF of 81504 and 81522?

We will first find the prime factorization of 81504 and 81522. After we will calculate the factors of 81504 and 81522 and find the biggest common factor number .

Step-1: Prime Factorization of 81504

Prime factors of 81504 are 2, 3, 283. Prime factorization of 81504 in exponential form is:

81504 = 2⁵ × 3² × 283¹

Step-2: Prime Factorization of 81522

Prime factors of 81522 are 2, 3, 7, 647. Prime factorization of 81522 in exponential form is:

81522 = 2¹ × 3² × 7¹ × 647¹

Step-3: Factors of 81504

List of positive integer factors of 81504 that divides 81504 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 283, 288, 566, 849, 1132, 1698, 2264, 2547, 3396, 4528, 5094, 6792, 9056, 10188, 13584, 20376, 27168, 40752

Step-4: Factors of 81522

List of positive integer factors of 81522 that divides 81504 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 647, 1294, 1941, 3882, 4529, 5823, 9058, 11646, 13587, 27174, 40761

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81504 and 81522. The biggest common factor number is the GCF number.
So the greatest common factor 81504 and 81522 is 18.

Also check out the Least Common Multiple of 81504 and 81522