What is the Greatest Common Factor of 218 and 235?

Greatest common factor (GCF) of 218 and 235 is 1.

GCF(218,235) = 1

We will now calculate the prime factors of 218 and 235, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 218 and 235.

How to find the GCF of 218 and 235?

We will first find the prime factorization of 218 and 235. After we will calculate the factors of 218 and 235 and find the biggest common factor number .

Step-1: Prime Factorization of 218

Prime factors of 218 are 2, 109. Prime factorization of 218 in exponential form is:

218 = 2¹ × 109¹

Step-2: Prime Factorization of 235

Prime factors of 235 are 5, 47. Prime factorization of 235 in exponential form is:

235 = 5¹ × 47¹

Step-3: Factors of 218

List of positive integer factors of 218 that divides 218 without a remainder.

1, 2, 109

Step-4: Factors of 235

List of positive integer factors of 235 that divides 218 without a remainder.

1, 5, 47

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 218 and 235. The biggest common factor number is the GCF number.
So the greatest common factor 218 and 235 is 1.

Also check out the Least Common Multiple of 218 and 235