What is the Greatest Common Factor of 30458 and 30478?

Greatest common factor (GCF) of 30458 and 30478 is 2.

GCF(30458,30478) = 2

We will now calculate the prime factors of 30458 and 30478, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30458 and 30478.

How to find the GCF of 30458 and 30478?

We will first find the prime factorization of 30458 and 30478. After we will calculate the factors of 30458 and 30478 and find the biggest common factor number .

Step-1: Prime Factorization of 30458

Prime factors of 30458 are 2, 97, 157. Prime factorization of 30458 in exponential form is:

30458 = 2¹ × 97¹ × 157¹

Step-2: Prime Factorization of 30478

Prime factors of 30478 are 2, 7, 311. Prime factorization of 30478 in exponential form is:

30478 = 2¹ × 7² × 311¹

Step-3: Factors of 30458

List of positive integer factors of 30458 that divides 30458 without a remainder.

1, 2, 97, 157, 194, 314, 15229

Step-4: Factors of 30478

List of positive integer factors of 30478 that divides 30458 without a remainder.

1, 2, 7, 14, 49, 98, 311, 622, 2177, 4354, 15239

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30458 and 30478. The biggest common factor number is the GCF number.
So the greatest common factor 30458 and 30478 is 2.

Also check out the Least Common Multiple of 30458 and 30478