What is the Greatest Common Factor of 67540 and 67545?

Greatest common factor (GCF) of 67540 and 67545 is 5.

GCF(67540,67545) = 5

We will now calculate the prime factors of 67540 and 67545, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67540 and 67545.

How to find the GCF of 67540 and 67545?

We will first find the prime factorization of 67540 and 67545. After we will calculate the factors of 67540 and 67545 and find the biggest common factor number .

Step-1: Prime Factorization of 67540

Prime factors of 67540 are 2, 5, 11, 307. Prime factorization of 67540 in exponential form is:

67540 = 2² × 5¹ × 11¹ × 307¹

Step-2: 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-3: Factors of 67540

List of positive integer factors of 67540 that divides 67540 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 307, 614, 1228, 1535, 3070, 3377, 6140, 6754, 13508, 16885, 33770

Step-4: Factors of 67545

List of positive integer factors of 67545 that divides 67540 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67540 and 67545. The biggest common factor number is the GCF number.
So the greatest common factor 67540 and 67545 is 5.

Also check out the Least Common Multiple of 67540 and 67545