What is the Greatest Common Factor of 30001 and 30020?

Greatest common factor (GCF) of 30001 and 30020 is 19.

GCF(30001,30020) = 19

We will now calculate the prime factors of 30001 and 30020, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30001 and 30020.

How to find the GCF of 30001 and 30020?

We will first find the prime factorization of 30001 and 30020. After we will calculate the factors of 30001 and 30020 and find the biggest common factor number .

Step-1: Prime Factorization of 30001

Prime factors of 30001 are 19, 1579. Prime factorization of 30001 in exponential form is:

30001 = 19¹ × 1579¹

Step-2: Prime Factorization of 30020

Prime factors of 30020 are 2, 5, 19, 79. Prime factorization of 30020 in exponential form is:

30020 = 2² × 5¹ × 19¹ × 79¹

Step-3: Factors of 30001

List of positive integer factors of 30001 that divides 30001 without a remainder.

1, 19, 1579

Step-4: Factors of 30020

List of positive integer factors of 30020 that divides 30001 without a remainder.

1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30001 and 30020. The biggest common factor number is the GCF number.
So the greatest common factor 30001 and 30020 is 19.

Also check out the Least Common Multiple of 30001 and 30020