What is the Greatest Common Factor of 42729 and 42735?

Greatest common factor (GCF) of 42729 and 42735 is 3.

GCF(42729,42735) = 3

We will now calculate the prime factors of 42729 and 42735, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42729 and 42735.

How to find the GCF of 42729 and 42735?

We will first find the prime factorization of 42729 and 42735. After we will calculate the factors of 42729 and 42735 and find the biggest common factor number .

Step-1: Prime Factorization of 42729

Prime factors of 42729 are 3, 14243. Prime factorization of 42729 in exponential form is:

42729 = 3¹ × 14243¹

Step-2: Prime Factorization of 42735

Prime factors of 42735 are 3, 5, 7, 11, 37. Prime factorization of 42735 in exponential form is:

42735 = 3¹ × 5¹ × 7¹ × 11¹ × 37¹

Step-3: Factors of 42729

List of positive integer factors of 42729 that divides 42729 without a remainder.

1, 3, 14243

Step-4: Factors of 42735

List of positive integer factors of 42735 that divides 42729 without a remainder.

1, 3, 5, 7, 11, 15, 21, 33, 35, 37, 55, 77, 105, 111, 165, 185, 231, 259, 385, 407, 555, 777, 1155, 1221, 1295, 2035, 2849, 3885, 6105, 8547, 14245

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42729 and 42735. The biggest common factor number is the GCF number.
So the greatest common factor 42729 and 42735 is 3.

Also check out the Least Common Multiple of 42729 and 42735