What is the Greatest Common Factor of 4209 and 4218?

Greatest common factor (GCF) of 4209 and 4218 is 3.

GCF(4209,4218) = 3

We will now calculate the prime factors of 4209 and 4218, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4209 and 4218.

How to find the GCF of 4209 and 4218?

We will first find the prime factorization of 4209 and 4218. After we will calculate the factors of 4209 and 4218 and find the biggest common factor number .

Step-1: Prime Factorization of 4209

Prime factors of 4209 are 3, 23, 61. Prime factorization of 4209 in exponential form is:

4209 = 3¹ × 23¹ × 61¹

Step-2: Prime Factorization of 4218

Prime factors of 4218 are 2, 3, 19, 37. Prime factorization of 4218 in exponential form is:

4218 = 2¹ × 3¹ × 19¹ × 37¹

Step-3: Factors of 4209

List of positive integer factors of 4209 that divides 4209 without a remainder.

1, 3, 23, 61, 69, 183, 1403

Step-4: Factors of 4218

List of positive integer factors of 4218 that divides 4209 without a remainder.

1, 2, 3, 6, 19, 37, 38, 57, 74, 111, 114, 222, 703, 1406, 2109

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4209 and 4218. The biggest common factor number is the GCF number.
So the greatest common factor 4209 and 4218 is 3.

Also check out the Least Common Multiple of 4209 and 4218