What is the Greatest Common Factor of 65538 and 65556?

Greatest common factor (GCF) of 65538 and 65556 is 18.

GCF(65538,65556) = 18

We will now calculate the prime factors of 65538 and 65556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65538 and 65556.

How to find the GCF of 65538 and 65556?

We will first find the prime factorization of 65538 and 65556. After we will calculate the factors of 65538 and 65556 and find the biggest common factor number .

Step-1: Prime Factorization of 65538

Prime factors of 65538 are 2, 3, 11, 331. Prime factorization of 65538 in exponential form is:

65538 = 2¹ × 3² × 11¹ × 331¹

Step-2: Prime Factorization of 65556

Prime factors of 65556 are 2, 3, 607. Prime factorization of 65556 in exponential form is:

65556 = 2² × 3³ × 607¹

Step-3: Factors of 65538

List of positive integer factors of 65538 that divides 65538 without a remainder.

1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 331, 662, 993, 1986, 2979, 3641, 5958, 7282, 10923, 21846, 32769

Step-4: Factors of 65556

List of positive integer factors of 65556 that divides 65538 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 607, 1214, 1821, 2428, 3642, 5463, 7284, 10926, 16389, 21852, 32778

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65538 and 65556. The biggest common factor number is the GCF number.
So the greatest common factor 65538 and 65556 is 18.

Also check out the Least Common Multiple of 65538 and 65556