What is the Greatest Common Factor of 30430 and 30438?

Greatest common factor (GCF) of 30430 and 30438 is 2.

GCF(30430,30438) = 2

We will now calculate the prime factors of 30430 and 30438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30430 and 30438.

How to find the GCF of 30430 and 30438?

We will first find the prime factorization of 30430 and 30438. After we will calculate the factors of 30430 and 30438 and find the biggest common factor number .

Step-1: Prime Factorization of 30430

Prime factors of 30430 are 2, 5, 17, 179. Prime factorization of 30430 in exponential form is:

30430 = 2¹ × 5¹ × 17¹ × 179¹

Step-2: Prime Factorization of 30438

Prime factors of 30438 are 2, 3, 19, 89. Prime factorization of 30438 in exponential form is:

30438 = 2¹ × 3² × 19¹ × 89¹

Step-3: Factors of 30430

List of positive integer factors of 30430 that divides 30430 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170, 179, 358, 895, 1790, 3043, 6086, 15215

Step-4: Factors of 30438

List of positive integer factors of 30438 that divides 30430 without a remainder.

1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 801, 1602, 1691, 3382, 5073, 10146, 15219

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30430 and 30438. The biggest common factor number is the GCF number.
So the greatest common factor 30430 and 30438 is 2.

Also check out the Least Common Multiple of 30430 and 30438