What is the Greatest Common Factor of 30520 and 30538?

Greatest common factor (GCF) of 30520 and 30538 is 2.

GCF(30520,30538) = 2

We will now calculate the prime factors of 30520 and 30538, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30520 and 30538.

How to find the GCF of 30520 and 30538?

We will first find the prime factorization of 30520 and 30538. After we will calculate the factors of 30520 and 30538 and find the biggest common factor number .

Step-1: Prime Factorization of 30520

Prime factors of 30520 are 2, 5, 7, 109. Prime factorization of 30520 in exponential form is:

30520 = 2³ × 5¹ × 7¹ × 109¹

Step-2: Prime Factorization of 30538

Prime factors of 30538 are 2, 15269. Prime factorization of 30538 in exponential form is:

30538 = 2¹ × 15269¹

Step-3: Factors of 30520

List of positive integer factors of 30520 that divides 30520 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1090, 1526, 2180, 3052, 3815, 4360, 6104, 7630, 15260

Step-4: Factors of 30538

List of positive integer factors of 30538 that divides 30520 without a remainder.

1, 2, 15269

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30520 and 30538. The biggest common factor number is the GCF number.
So the greatest common factor 30520 and 30538 is 2.

Also check out the Least Common Multiple of 30520 and 30538