What is the Greatest Common Factor of 30042 and 30057?

Greatest common factor (GCF) of 30042 and 30057 is 3.

GCF(30042,30057) = 3

We will now calculate the prime factors of 30042 and 30057, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30042 and 30057.

How to find the GCF of 30042 and 30057?

We will first find the prime factorization of 30042 and 30057. After we will calculate the factors of 30042 and 30057 and find the biggest common factor number .

Step-1: Prime Factorization of 30042

Prime factors of 30042 are 2, 3, 1669. Prime factorization of 30042 in exponential form is:

30042 = 2¹ × 3² × 1669¹

Step-2: Prime Factorization of 30057

Prime factors of 30057 are 3, 43, 233. Prime factorization of 30057 in exponential form is:

30057 = 3¹ × 43¹ × 233¹

Step-3: Factors of 30042

List of positive integer factors of 30042 that divides 30042 without a remainder.

1, 2, 3, 6, 9, 18, 1669, 3338, 5007, 10014, 15021

Step-4: Factors of 30057

List of positive integer factors of 30057 that divides 30042 without a remainder.

1, 3, 43, 129, 233, 699, 10019

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30042 and 30057. The biggest common factor number is the GCF number.
So the greatest common factor 30042 and 30057 is 3.

Also check out the Least Common Multiple of 30042 and 30057