What is the Greatest Common Factor of 13545 and 13555?

Greatest common factor (GCF) of 13545 and 13555 is 5.

GCF(13545,13555) = 5

We will now calculate the prime factors of 13545 and 13555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13545 and 13555.

How to find the GCF of 13545 and 13555?

We will first find the prime factorization of 13545 and 13555. After we will calculate the factors of 13545 and 13555 and find the biggest common factor number .

Step-1: Prime Factorization of 13545

Prime factors of 13545 are 3, 5, 7, 43. Prime factorization of 13545 in exponential form is:

13545 = 3² × 5¹ × 7¹ × 43¹

Step-2: Prime Factorization of 13555

Prime factors of 13555 are 5, 2711. Prime factorization of 13555 in exponential form is:

13555 = 5¹ × 2711¹

Step-3: Factors of 13545

List of positive integer factors of 13545 that divides 13545 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1505, 1935, 2709, 4515

Step-4: Factors of 13555

List of positive integer factors of 13555 that divides 13545 without a remainder.

1, 5, 2711

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13545 and 13555. The biggest common factor number is the GCF number.
So the greatest common factor 13545 and 13555 is 5.

Also check out the Least Common Multiple of 13545 and 13555