What is the Greatest Common Factor of 72820 and 72838?

Greatest common factor (GCF) of 72820 and 72838 is 2.

GCF(72820,72838) = 2

We will now calculate the prime factors of 72820 and 72838, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72820 and 72838.

How to find the GCF of 72820 and 72838?

We will first find the prime factorization of 72820 and 72838. After we will calculate the factors of 72820 and 72838 and find the biggest common factor number .

Step-1: Prime Factorization of 72820

Prime factors of 72820 are 2, 5, 11, 331. Prime factorization of 72820 in exponential form is:

72820 = 2² × 5¹ × 11¹ × 331¹

Step-2: Prime Factorization of 72838

Prime factors of 72838 are 2, 79, 461. Prime factorization of 72838 in exponential form is:

72838 = 2¹ × 79¹ × 461¹

Step-3: Factors of 72820

List of positive integer factors of 72820 that divides 72820 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 662, 1324, 1655, 3310, 3641, 6620, 7282, 14564, 18205, 36410

Step-4: Factors of 72838

List of positive integer factors of 72838 that divides 72820 without a remainder.

1, 2, 79, 158, 461, 922, 36419

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72820 and 72838. The biggest common factor number is the GCF number.
So the greatest common factor 72820 and 72838 is 2.

Also check out the Least Common Multiple of 72820 and 72838