Greatest Common Factor of 690 and 695

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 690, 695 i.e. 5 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 690 and 695 is 5.

GCF(690,695) = 5

GCF of 690 and 695

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

GCF of:
and

Greatest Common Factor of 690 and 695

GCF of 690 and 695 is 5

Prime Factorization of 690


2 690
3 345
5 115
23 23
1

Prime factors of 690 are 2,3,5,23. Prime factorization of 690 in exponential form is:

690 = 21×31×51×231

Prime Factorization of 695


5 695
139 139
1

Prime factors of 695 are 5,139. Prime factorization of 695 in exponential form is:

695 = 51×1391

∴ So by taking common prime factors GCF of 690 and 695 is 5

Greatest Common Factor of 690 and 695 by matching factors method

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Factors of 695

List of positive integer factors of 695 that divides 695 without a remainder.

1,5,139,695

Greatest Common Factor

We found the factors and prime factorization of 690 and 695. The biggest common factor number is the GCF number.
So the greatest common factor 690 and 695 is 5.

Also check out the Least Common Multiple of 690 and 695

Properties of GCF 690 and 695

(i) The GCF of 690 and 695 is associative

GCF of 690 and 695 = GCF of 695 and 690

Related Greatest Common Factor of 690

Related Greatest Common Factor of 695

Frequently Asked Questions on GCF of 690 and 695

1. What is the GCF of 690 and 695?

Answer: GCF of 690 and 695 is 5.

2. What are the Factors of 690?

Answer: Factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690. There are 16 integers that are factors of 690. The greatest factor of 690 is 690.

3. What are the Factors of 695?

Answer: Factors of 695 are 1, 5, 139, 695. There are 4 integers that are factors of 695. The greatest factor of 695 is 695.

4. How to Find the GCF of 690 and 695?

Answer:

Greatest Common Factor of 690 and 695 = 5

Step 1: Find the prime factorization of 690

690 = 2 x 3 x 5 x 23

Step 2: Find the prime factorization of 695

695 = 5 x 139

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

GCF = 5

Step 4: Therefore, the greatest common factor of 690 and 695 is 5