What is the Greatest Common Factor of 39820 and 39831?

Greatest common factor (GCF) of 39820 and 39831 is 11.

GCF(39820,39831) = 11

We will now calculate the prime factors of 39820 and 39831, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39820 and 39831.

How to find the GCF of 39820 and 39831?

We will first find the prime factorization of 39820 and 39831. After we will calculate the factors of 39820 and 39831 and find the biggest common factor number .

Step-1: Prime Factorization of 39820

Prime factors of 39820 are 2, 5, 11, 181. Prime factorization of 39820 in exponential form is:

39820 = 2² × 5¹ × 11¹ × 181¹

Step-2: Prime Factorization of 39831

Prime factors of 39831 are 3, 11, 17, 71. Prime factorization of 39831 in exponential form is:

39831 = 3¹ × 11¹ × 17¹ × 71¹

Step-3: Factors of 39820

List of positive integer factors of 39820 that divides 39820 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 7964, 9955, 19910

Step-4: Factors of 39831

List of positive integer factors of 39831 that divides 39820 without a remainder.

1, 3, 11, 17, 33, 51, 71, 187, 213, 561, 781, 1207, 2343, 3621, 13277

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39820 and 39831. The biggest common factor number is the GCF number.
So the greatest common factor 39820 and 39831 is 11.

Also check out the Least Common Multiple of 39820 and 39831