Greatest Common Factor of 28 and 33

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 28, 33 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 28 and 33 is 1.

GCF(28,33) = 1

GCF of 28 and 33

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

GCF of:
and

Greatest Common Factor of 28 and 33

GCF of 28 and 33 is 1

Prime Factorization of 28


2 28
2 14
7 7
1

Prime factors of 28 are 2,7. Prime factorization of 28 in exponential form is:

28 = 22×71

Prime Factorization of 33


3 33
11 11
1

Prime factors of 33 are 3,11. Prime factorization of 33 in exponential form is:

33 = 31×111

∴ So by taking common prime factors GCF of 28 and 33 is 1

Greatest Common Factor of 28 and 33 by matching factors method

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Greatest Common Factor

We found the factors and prime factorization of 28 and 33. The biggest common factor number is the GCF number.
So the greatest common factor 28 and 33 is 1.

Also check out the Least Common Multiple of 28 and 33

Properties of GCF 28 and 33

(i) The GCF of 28 and 33 is associative

GCF of 28 and 33 = GCF of 33 and 28

Related Greatest Common Factor of 28

Related Greatest Common Factor of 33

Frequently Asked Questions on GCF of 28 and 33

1. What is the GCF of 28 and 33?

Answer: GCF of 28 and 33 is 1.

2. What are the Factors of 28?

Answer: Factors of 28 are 1, 2, 4, 7, 14, 28. There are 6 integers that are factors of 28. The greatest factor of 28 is 28.

3. What are the Factors of 33?

Answer: Factors of 33 are 1, 3, 11, 33. There are 4 integers that are factors of 33. The greatest factor of 33 is 33.

4. How to Find the GCF of 28 and 33?

Answer:

Greatest Common Factor of 28 and 33 = 1

Step 1: Find the prime factorization of 28

28 = 2 x 2 x 7

Step 2: Find the prime factorization of 33

33 = 3 x 11

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 28 and 33 is 1