What is the Greatest Common Factor of 30729 and 30738?

Greatest common factor (GCF) of 30729 and 30738 is 3.

GCF(30729,30738) = 3

We will now calculate the prime factors of 30729 and 30738, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30729 and 30738.

How to find the GCF of 30729 and 30738?

We will first find the prime factorization of 30729 and 30738. After we will calculate the factors of 30729 and 30738 and find the biggest common factor number .

Step-1: Prime Factorization of 30729

Prime factors of 30729 are 3, 10243. Prime factorization of 30729 in exponential form is:

30729 = 3¹ × 10243¹

Step-2: Prime Factorization of 30738

Prime factors of 30738 are 2, 3, 47, 109. Prime factorization of 30738 in exponential form is:

30738 = 2¹ × 3¹ × 47¹ × 109¹

Step-3: Factors of 30729

List of positive integer factors of 30729 that divides 30729 without a remainder.

1, 3, 10243

Step-4: Factors of 30738

List of positive integer factors of 30738 that divides 30729 without a remainder.

1, 2, 3, 6, 47, 94, 109, 141, 218, 282, 327, 654, 5123, 10246, 15369

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30729 and 30738. The biggest common factor number is the GCF number.
So the greatest common factor 30729 and 30738 is 3.

Also check out the Least Common Multiple of 30729 and 30738