Greatest Common Factor of 9 and 25

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 9, 25 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 9 and 25 is 1.

GCF(9,25) = 1

GCF of 9 and 25

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

GCF of:
and

Greatest Common Factor of 9 and 25

GCF of 9 and 25 is 1

Prime Factorization of 9


3 9
3 3
1

Prime factors of 9 are 3. Prime factorization of 9 in exponential form is:

9 = 32

Prime Factorization of 25


5 25
5 5
1

Prime factors of 25 are 5.Prime factorization of 25 in exponential form is:

25 = 52

∴ So by taking common prime factors GCF of 9 and 25 is 1

Greatest Common Factor of 9 and 25 by matching factors method

Factors of 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Greatest Common Factor

We found the factors and prime factorization of 9 and 25. The biggest common factor number is the GCF number.
So the greatest common factor 9 and 25 is 1.

Also check out the Least Common Multiple of 9 and 25

Properties of GCF 9 and 25

(i) The GCF of 9 and 25 is associative

GCF of 9 and 25 = GCF of 25 and 9

Related Greatest Common Factor of 9

Related Greatest Common Factor of 25

Frequently Asked Questions on GCF of 9 and 25

1. What is the GCF of 9 and 25?

Answer: GCF of 9 and 25 is 1.

2. What are the Factors of 9?

Answer: Factors of 9 are 1, 3, 9. There are 3 integers that are factors of 9. The greatest factor of 9 is 9.

3. What are the Factors of 25?

Answer: Factors of 25 are 1, 5, 25. There are 3 integers that are factors of 25. The greatest factor of 25 is 25.

4. How to Find the GCF of 9 and 25?

Answer:

Greatest Common Factor of 9 and 25 = 1

Step 1: Find the prime factorization of 9

9 = 3 x 3

Step 2: Find the prime factorization of 25

25 = 5 x 5

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 9 and 25 is 1