What is the Greatest Common Factor of 30020 and 30040?

Greatest common factor (GCF) of 30020 and 30040 is 20.

GCF(30020,30040) = 20

We will now calculate the prime factors of 30020 and 30040, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30020 and 30040.

How to find the GCF of 30020 and 30040?

We will first find the prime factorization of 30020 and 30040. After we will calculate the factors of 30020 and 30040 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 30040

Prime factors of 30040 are 2, 5, 751. Prime factorization of 30040 in exponential form is:

30040 = 2³ × 5¹ × 751¹

Step-3: Factors of 30020

List of positive integer factors of 30020 that divides 30020 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

Step-4: Factors of 30040

List of positive integer factors of 30040 that divides 30020 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 751, 1502, 3004, 3755, 6008, 7510, 15020

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30020 and 30040. The biggest common factor number is the GCF number.
So the greatest common factor 30020 and 30040 is 20.

Also check out the Least Common Multiple of 30020 and 30040