What is the Greatest Common Factor of 11973 and 11986?

Greatest common factor (GCF) of 11973 and 11986 is 13.

GCF(11973,11986) = 13

We will now calculate the prime factors of 11973 and 11986, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11973 and 11986.

How to find the GCF of 11973 and 11986?

We will first find the prime factorization of 11973 and 11986. After we will calculate the factors of 11973 and 11986 and find the biggest common factor number .

Step-1: Prime Factorization of 11973

Prime factors of 11973 are 3, 13, 307. Prime factorization of 11973 in exponential form is:

11973 = 3¹ × 13¹ × 307¹

Step-2: Prime Factorization of 11986

Prime factors of 11986 are 2, 13, 461. Prime factorization of 11986 in exponential form is:

11986 = 2¹ × 13¹ × 461¹

Step-3: Factors of 11973

List of positive integer factors of 11973 that divides 11973 without a remainder.

1, 3, 13, 39, 307, 921, 3991

Step-4: Factors of 11986

List of positive integer factors of 11986 that divides 11973 without a remainder.

1, 2, 13, 26, 461, 922, 5993

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11973 and 11986. The biggest common factor number is the GCF number.
So the greatest common factor 11973 and 11986 is 13.

Also check out the Least Common Multiple of 11973 and 11986