Greatest Common Factor of 198 and 206

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 198, 206 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 198 and 206 is 2.

GCF(198,206) = 2

GCF of 198 and 206

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 198 and 206

GCF of 198 and 206 is 2

Prime Factorization of 198


2 198
3 99
3 33
11 11
1

Prime factors of 198 are 2,3,11. Prime factorization of 198 in exponential form is:

198 = 21×32×111

Prime Factorization of 206


2 206
103 103
1

Prime factors of 206 are 2,103. Prime factorization of 206 in exponential form is:

206 = 21×1031

∴ So by taking common prime factors GCF of 198 and 206 is 2

Greatest Common Factor of 198 and 206 by matching factors method

Factors of 198

List of positive integer factors of 198 that divides 198 without a remainder.

1,2,3,6,9,11,18,22,33,66,99,198

Factors of 206

List of positive integer factors of 206 that divides 206 without a remainder.

1,2,103,206

Greatest Common Factor

We found the factors and prime factorization of 198 and 206. The biggest common factor number is the GCF number.
So the greatest common factor 198 and 206 is 2.

Also check out the Least Common Multiple of 198 and 206

Properties of GCF 198 and 206

(i) The GCF of 198 and 206 is associative

GCF of 198 and 206 = GCF of 206 and 198

Frequently Asked Questions on GCF of 198 and 206

1. What is the GCF of 198 and 206?

Answer: GCF of 198 and 206 is 2.

2. What are the Factors of 198?

Answer: Factors of 198 are 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198. There are 12 integers that are factors of 198. The greatest factor of 198 is 198.

3. What are the Factors of 206?

Answer: Factors of 206 are 1, 2, 103, 206. There are 4 integers that are factors of 206. The greatest factor of 206 is 206.

4. How to Find the GCF of 198 and 206?

Answer:

Greatest Common Factor of 198 and 206 = 2

Step 1: Find the prime factorization of 198

198 = 2 x 3 x 3 x 11

Step 2: Find the prime factorization of 206

206 = 2 x 103

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 2

Step 4: Therefore, the greatest common factor of 198 and 206 is 2