What is the Greatest Common Factor of 13811 and 13820?

Greatest common factor (GCF) of 13811 and 13820 is 1.

GCF(13811,13820) = 1

We will now calculate the prime factors of 13811 and 13820, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13811 and 13820.

How to find the GCF of 13811 and 13820?

We will first find the prime factorization of 13811 and 13820. After we will calculate the factors of 13811 and 13820 and find the biggest common factor number .

Step-1: Prime Factorization of 13811

Prime factors of 13811 are 7, 1973. Prime factorization of 13811 in exponential form is:

13811 = 7¹ × 1973¹

Step-2: Prime Factorization of 13820

Prime factors of 13820 are 2, 5, 691. Prime factorization of 13820 in exponential form is:

13820 = 2² × 5¹ × 691¹

Step-3: Factors of 13811

List of positive integer factors of 13811 that divides 13811 without a remainder.

1, 7, 1973

Step-4: Factors of 13820

List of positive integer factors of 13820 that divides 13811 without a remainder.

1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6910

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13811 and 13820. The biggest common factor number is the GCF number.
So the greatest common factor 13811 and 13820 is 1.

Also check out the Least Common Multiple of 13811 and 13820