Greatest Common Factor of 7 and 8

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 7, 8 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 7 and 8 is 1.

GCF(7,8) = 1

GCF of 7 and 8

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

GCF of:
and

Greatest Common Factor of 7 and 8

GCF of 7 and 8 is 1

Prime Factorization of 7


7 7
1

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

7 = 71

Prime Factorization of 8


2 8
2 4
2 2
1

Prime factors of 8 are 2.Prime factorization of 8 in exponential form is:

8 = 23

∴ So by taking common prime factors GCF of 7 and 8 is 1

Greatest Common Factor of 7 and 8 by matching factors method

Factors of 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Factors of 8

List of positive integer factors of 8 that divides 8 without a remainder.

1,2,4,8

Greatest Common Factor

We found the factors and prime factorization of 7 and 8. The biggest common factor number is the GCF number.
So the greatest common factor 7 and 8 is 1.

Also check out the Least Common Multiple of 7 and 8

Properties of GCF 7 and 8

(i) The GCF of 7 and 8 is associative

GCF of 7 and 8 = GCF of 8 and 7

Related Greatest Common Factor of 7

Related Greatest Common Factor of 8

Frequently Asked Questions on GCF of 7 and 8

1. What is the GCF of 7 and 8?

Answer: GCF of 7 and 8 is 1.

2. What are the Factors of 7?

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

3. What are the Factors of 8?

Answer: Factors of 8 are 1, 2, 4, 8. There are 4 integers that are factors of 8. The greatest factor of 8 is 8.

4. How to Find the GCF of 7 and 8?

Answer:

Greatest Common Factor of 7 and 8 = 1

Step 1: Find the prime factorization of 7

7 = 7

Step 2: Find the prime factorization of 8

8 = 2 x 2 x 2

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 7 and 8 is 1