What is the Greatest Common Factor of 42738 and 42747?

Greatest common factor (GCF) of 42738 and 42747 is 3.

GCF(42738,42747) = 3

We will now calculate the prime factors of 42738 and 42747, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42738 and 42747.

How to find the GCF of 42738 and 42747?

We will first find the prime factorization of 42738 and 42747. After we will calculate the factors of 42738 and 42747 and find the biggest common factor number .

Step-1: Prime Factorization of 42738

Prime factors of 42738 are 2, 3, 17, 419. Prime factorization of 42738 in exponential form is:

42738 = 2¹ × 3¹ × 17¹ × 419¹

Step-2: Prime Factorization of 42747

Prime factors of 42747 are 3, 14249. Prime factorization of 42747 in exponential form is:

42747 = 3¹ × 14249¹

Step-3: Factors of 42738

List of positive integer factors of 42738 that divides 42738 without a remainder.

1, 2, 3, 6, 17, 34, 51, 102, 419, 838, 1257, 2514, 7123, 14246, 21369

Step-4: Factors of 42747

List of positive integer factors of 42747 that divides 42738 without a remainder.

1, 3, 14249

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42738 and 42747. The biggest common factor number is the GCF number.
So the greatest common factor 42738 and 42747 is 3.

Also check out the Least Common Multiple of 42738 and 42747