What is the Greatest Common Factor of 67545 and 67557?

Greatest common factor (GCF) of 67545 and 67557 is 3.

GCF(67545,67557) = 3

We will now calculate the prime factors of 67545 and 67557, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67545 and 67557.

How to find the GCF of 67545 and 67557?

We will first find the prime factorization of 67545 and 67557. After we will calculate the factors of 67545 and 67557 and find the biggest common factor number .

Step-1: Prime Factorization of 67545

Prime factors of 67545 are 3, 5, 19, 79. Prime factorization of 67545 in exponential form is:

67545 = 3² × 5¹ × 19¹ × 79¹

Step-2: Prime Factorization of 67557

Prime factors of 67557 are 3, 7, 3217. Prime factorization of 67557 in exponential form is:

67557 = 3¹ × 7¹ × 3217¹

Step-3: Factors of 67545

List of positive integer factors of 67545 that divides 67545 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 79, 95, 171, 237, 285, 395, 711, 855, 1185, 1501, 3555, 4503, 7505, 13509, 22515

Step-4: Factors of 67557

List of positive integer factors of 67557 that divides 67545 without a remainder.

1, 3, 7, 21, 3217, 9651, 22519

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67545 and 67557. The biggest common factor number is the GCF number.
So the greatest common factor 67545 and 67557 is 3.

Also check out the Least Common Multiple of 67545 and 67557