What is the Greatest Common Factor of 81543 and 81552?

Greatest common factor (GCF) of 81543 and 81552 is 3.

GCF(81543,81552) = 3

We will now calculate the prime factors of 81543 and 81552, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81543 and 81552.

How to find the GCF of 81543 and 81552?

We will first find the prime factorization of 81543 and 81552. After we will calculate the factors of 81543 and 81552 and find the biggest common factor number .

Step-1: Prime Factorization of 81543

Prime factors of 81543 are 3, 7, 11, 353. Prime factorization of 81543 in exponential form is:

81543 = 3¹ × 7¹ × 11¹ × 353¹

Step-2: Prime Factorization of 81552

Prime factors of 81552 are 2, 3, 1699. Prime factorization of 81552 in exponential form is:

81552 = 2⁴ × 3¹ × 1699¹

Step-3: Factors of 81543

List of positive integer factors of 81543 that divides 81543 without a remainder.

1, 3, 7, 11, 21, 33, 77, 231, 353, 1059, 2471, 3883, 7413, 11649, 27181

Step-4: Factors of 81552

List of positive integer factors of 81552 that divides 81543 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1699, 3398, 5097, 6796, 10194, 13592, 20388, 27184, 40776

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81543 and 81552. The biggest common factor number is the GCF number.
So the greatest common factor 81543 and 81552 is 3.

Also check out the Least Common Multiple of 81543 and 81552