Greatest Common Factor of 221 and 228

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 221, 228 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 221 and 228 is 1.

GCF(221,228) = 1

GCF of 221 and 228

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

GCF of:
and

Greatest Common Factor of 221 and 228

GCF of 221 and 228 is 1

Prime Factorization of 221


13 221
17 17
1

Prime factors of 221 are 13,17. Prime factorization of 221 in exponential form is:

221 = 131×171

Prime Factorization of 228


2 228
2 114
3 57
19 19
1

Prime factors of 228 are 2,3,19. Prime factorization of 228 in exponential form is:

228 = 22×31×191

∴ So by taking common prime factors GCF of 221 and 228 is 1

Greatest Common Factor of 221 and 228 by matching factors method

Factors of 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Factors of 228

List of positive integer factors of 228 that divides 228 without a remainder.

1,2,3,4,6,12,19,38,57,76,114,228

Greatest Common Factor

We found the factors and prime factorization of 221 and 228. The biggest common factor number is the GCF number.
So the greatest common factor 221 and 228 is 1.

Also check out the Least Common Multiple of 221 and 228

Properties of GCF 221 and 228

(i) The GCF of 221 and 228 is associative

GCF of 221 and 228 = GCF of 228 and 221

Related Greatest Common Factor of 221

Related Greatest Common Factor of 228

Frequently Asked Questions on GCF of 221 and 228

1. What is the GCF of 221 and 228?

Answer: GCF of 221 and 228 is 1.

2. What are the Factors of 221?

Answer: Factors of 221 are 1, 13, 17, 221. There are 4 integers that are factors of 221. The greatest factor of 221 is 221.

3. What are the Factors of 228?

Answer: Factors of 228 are 1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228. There are 12 integers that are factors of 228. The greatest factor of 228 is 228.

4. How to Find the GCF of 221 and 228?

Answer:

Greatest Common Factor of 221 and 228 = 1

Step 1: Find the prime factorization of 221

221 = 13 x 17

Step 2: Find the prime factorization of 228

228 = 2 x 2 x 3 x 19

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

GCF = = 1

Step 4: Therefore, the greatest common factor of 221 and 228 is 1