What is the Greatest Common Factor of 30421 and 30438?

Greatest common factor (GCF) of 30421 and 30438 is 1.

GCF(30421,30438) = 1

We will now calculate the prime factors of 30421 and 30438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30421 and 30438.

How to find the GCF of 30421 and 30438?

We will first find the prime factorization of 30421 and 30438. After we will calculate the factors of 30421 and 30438 and find the biggest common factor number .

Step-1: Prime Factorization of 30421

Prime factors of 30421 are 29, 1049. Prime factorization of 30421 in exponential form is:

30421 = 29¹ × 1049¹

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 30421

List of positive integer factors of 30421 that divides 30421 without a remainder.

1, 29, 1049

Step-4: Factors of 30438

List of positive integer factors of 30438 that divides 30421 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 30421 and 30438. The biggest common factor number is the GCF number.
So the greatest common factor 30421 and 30438 is 1.

Also check out the Least Common Multiple of 30421 and 30438