What is the Greatest Common Factor of 40191 and 40209?

Greatest common factor (GCF) of 40191 and 40209 is 3.

GCF(40191,40209) = 3

We will now calculate the prime factors of 40191 and 40209, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40191 and 40209.

How to find the GCF of 40191 and 40209?

We will first find the prime factorization of 40191 and 40209. After we will calculate the factors of 40191 and 40209 and find the biggest common factor number .

Step-1: Prime Factorization of 40191

Prime factors of 40191 are 3, 13397. Prime factorization of 40191 in exponential form is:

40191 = 3¹ × 13397¹

Step-2: Prime Factorization of 40209

Prime factors of 40209 are 3, 13, 1031. Prime factorization of 40209 in exponential form is:

40209 = 3¹ × 13¹ × 1031¹

Step-3: Factors of 40191

List of positive integer factors of 40191 that divides 40191 without a remainder.

1, 3, 13397

Step-4: Factors of 40209

List of positive integer factors of 40209 that divides 40191 without a remainder.

1, 3, 13, 39, 1031, 3093, 13403

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40191 and 40209. The biggest common factor number is the GCF number.
So the greatest common factor 40191 and 40209 is 3.

Also check out the Least Common Multiple of 40191 and 40209