What is the Greatest Common Factor of 66105 and 66115?

Greatest common factor (GCF) of 66105 and 66115 is 5.

GCF(66105,66115) = 5

We will now calculate the prime factors of 66105 and 66115, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66105 and 66115.

How to find the GCF of 66105 and 66115?

We will first find the prime factorization of 66105 and 66115. After we will calculate the factors of 66105 and 66115 and find the biggest common factor number .

Step-1: Prime Factorization of 66105

Prime factors of 66105 are 3, 5, 13, 113. Prime factorization of 66105 in exponential form is:

66105 = 3² × 5¹ × 13¹ × 113¹

Step-2: Prime Factorization of 66115

Prime factors of 66115 are 5, 7, 1889. Prime factorization of 66115 in exponential form is:

66115 = 5¹ × 7¹ × 1889¹

Step-3: Factors of 66105

List of positive integer factors of 66105 that divides 66105 without a remainder.

1, 3, 5, 9, 13, 15, 39, 45, 65, 113, 117, 195, 339, 565, 585, 1017, 1469, 1695, 4407, 5085, 7345, 13221, 22035

Step-4: Factors of 66115

List of positive integer factors of 66115 that divides 66105 without a remainder.

1, 5, 7, 35, 1889, 9445, 13223

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66105 and 66115. The biggest common factor number is the GCF number.
So the greatest common factor 66105 and 66115 is 5.

Also check out the Least Common Multiple of 66105 and 66115