Greatest Common Factor of 1203 and 1209

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 1203, 1209 i.e. 3 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1203 and 1209 is 3.

GCF(1203,1209) = 3

GCF of 1203 and 1209

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

GCF of:
and

Greatest Common Factor of 1203 and 1209

GCF of 1203 and 1209 is 3

Prime Factorization of 1203


3 1203
401 401
1

Prime factors of 1203 are 3,401. Prime factorization of 1203 in exponential form is:

1203 = 31×4011

Prime Factorization of 1209


3 1209
13 403
31 31
1

Prime factors of 1209 are 3,13,31. Prime factorization of 1209 in exponential form is:

1209 = 31×131×311

∴ So by taking common prime factors GCF of 1203 and 1209 is 3

Greatest Common Factor of 1203 and 1209 by matching factors method

Factors of 1203

List of positive integer factors of 1203 that divides 1203 without a remainder.

1,3,401,1203

Factors of 1209

List of positive integer factors of 1209 that divides 1209 without a remainder.

1,3,13,31,39,93,403,1209

Greatest Common Factor

We found the factors and prime factorization of 1203 and 1209. The biggest common factor number is the GCF number.
So the greatest common factor 1203 and 1209 is 3.

Also check out the Least Common Multiple of 1203 and 1209

Properties of GCF 1203 and 1209

(i) The GCF of 1203 and 1209 is associative

GCF of 1203 and 1209 = GCF of 1209 and 1203

Related Greatest Common Factor of 1203

Related Greatest Common Factor of 1209

Frequently Asked Questions on GCF of 1203 and 1209

1. What is the GCF of 1203 and 1209?

Answer: GCF of 1203 and 1209 is 3.

2. What are the Factors of 1203?

Answer: Factors of 1203 are 1, 3, 401, 1203. There are 4 integers that are factors of 1203. The greatest factor of 1203 is 1203.

3. What are the Factors of 1209?

Answer: Factors of 1209 are 1, 3, 13, 31, 39, 93, 403, 1209. There are 8 integers that are factors of 1209. The greatest factor of 1209 is 1209.

4. How to Find the GCF of 1203 and 1209?

Answer:

Greatest Common Factor of 1203 and 1209 = 3

Step 1: Find the prime factorization of 1203

1203 = 3 x 401

Step 2: Find the prime factorization of 1209

1209 = 3 x 13 x 31

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

GCF = 3

Step 4: Therefore, the greatest common factor of 1203 and 1209 is 3