What is the Greatest Common Factor of 65531 and 65538?

Greatest common factor (GCF) of 65531 and 65538 is 1.

GCF(65531,65538) = 1

We will now calculate the prime factors of 65531 and 65538, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65531 and 65538.

How to find the GCF of 65531 and 65538?

We will first find the prime factorization of 65531 and 65538. After we will calculate the factors of 65531 and 65538 and find the biggest common factor number .

Step-1: Prime Factorization of 65531

Prime factors of 65531 are 19, 3449. Prime factorization of 65531 in exponential form is:

65531 = 19¹ × 3449¹

Step-2: 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-3: Factors of 65531

List of positive integer factors of 65531 that divides 65531 without a remainder.

1, 19, 3449

Step-4: Factors of 65538

List of positive integer factors of 65538 that divides 65531 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65531 and 65538. The biggest common factor number is the GCF number.
So the greatest common factor 65531 and 65538 is 1.

Also check out the Least Common Multiple of 65531 and 65538