What is the Greatest Common Factor of 16581 and 16587?

Greatest common factor (GCF) of 16581 and 16587 is 3.

GCF(16581,16587) = 3

We will now calculate the prime factors of 16581 and 16587, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16581 and 16587.

How to find the GCF of 16581 and 16587?

We will first find the prime factorization of 16581 and 16587. After we will calculate the factors of 16581 and 16587 and find the biggest common factor number .

Step-1: Prime Factorization of 16581

Prime factors of 16581 are 3, 5527. Prime factorization of 16581 in exponential form is:

16581 = 3¹ × 5527¹

Step-2: Prime Factorization of 16587

Prime factors of 16587 are 3, 19, 97. Prime factorization of 16587 in exponential form is:

16587 = 3² × 19¹ × 97¹

Step-3: Factors of 16581

List of positive integer factors of 16581 that divides 16581 without a remainder.

1, 3, 5527

Step-4: Factors of 16587

List of positive integer factors of 16587 that divides 16581 without a remainder.

1, 3, 9, 19, 57, 97, 171, 291, 873, 1843, 5529

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16581 and 16587. The biggest common factor number is the GCF number.
So the greatest common factor 16581 and 16587 is 3.

Also check out the Least Common Multiple of 16581 and 16587