What is the Greatest Common Factor of 42075 and 42081?

Greatest common factor (GCF) of 42075 and 42081 is 3.

GCF(42075,42081) = 3

We will now calculate the prime factors of 42075 and 42081, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42075 and 42081.

How to find the GCF of 42075 and 42081?

We will first find the prime factorization of 42075 and 42081. After we will calculate the factors of 42075 and 42081 and find the biggest common factor number .

Step-1: Prime Factorization of 42075

Prime factors of 42075 are 3, 5, 11, 17. Prime factorization of 42075 in exponential form is:

42075 = 3² × 5² × 11¹ × 17¹

Step-2: Prime Factorization of 42081

Prime factors of 42081 are 3, 13, 83. Prime factorization of 42081 in exponential form is:

42081 = 3¹ × 13² × 83¹

Step-3: Factors of 42075

List of positive integer factors of 42075 that divides 42075 without a remainder.

1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 99, 153, 165, 187, 225, 255, 275, 425, 495, 561, 765, 825, 935, 1275, 1683, 2475, 2805, 3825, 4675, 8415, 14025

Step-4: Factors of 42081

List of positive integer factors of 42081 that divides 42075 without a remainder.

1, 3, 13, 39, 83, 169, 249, 507, 1079, 3237, 14027

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42075 and 42081. The biggest common factor number is the GCF number.
So the greatest common factor 42075 and 42081 is 3.

Also check out the Least Common Multiple of 42075 and 42081