Greatest Common Factor of 688 and 689

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 688, 689 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 688 and 689 is 1.

GCF(688,689) = 1

GCF of 688 and 689

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

GCF of:
and

Greatest Common Factor of 688 and 689

GCF of 688 and 689 is 1

Prime Factorization of 688


2 688
2 344
2 172
2 86
43 43
1

Prime factors of 688 are 2,43. Prime factorization of 688 in exponential form is:

688 = 24×431

Prime Factorization of 689


13 689
53 53
1

Prime factors of 689 are 13,53. Prime factorization of 689 in exponential form is:

689 = 131×531

∴ So by taking common prime factors GCF of 688 and 689 is 1

Greatest Common Factor of 688 and 689 by matching factors method

Factors of 688

List of positive integer factors of 688 that divides 688 without a remainder.

1,2,4,8,16,43,86,172,344,688

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Greatest Common Factor

We found the factors and prime factorization of 688 and 689. The biggest common factor number is the GCF number.
So the greatest common factor 688 and 689 is 1.

Also check out the Least Common Multiple of 688 and 689

Properties of GCF 688 and 689

(i) The GCF of 688 and 689 is associative

GCF of 688 and 689 = GCF of 689 and 688

Related Greatest Common Factor of 688

Related Greatest Common Factor of 689

Frequently Asked Questions on GCF of 688 and 689

1. What is the GCF of 688 and 689?

Answer: GCF of 688 and 689 is 1.

2. What are the Factors of 688?

Answer: Factors of 688 are 1, 2, 4, 8, 16, 43, 86, 172, 344, 688. There are 10 integers that are factors of 688. The greatest factor of 688 is 688.

3. What are the Factors of 689?

Answer: Factors of 689 are 1, 13, 53, 689. There are 4 integers that are factors of 689. The greatest factor of 689 is 689.

4. How to Find the GCF of 688 and 689?

Answer:

Greatest Common Factor of 688 and 689 = 1

Step 1: Find the prime factorization of 688

688 = 2 x 2 x 2 x 2 x 43

Step 2: Find the prime factorization of 689

689 = 13 x 53

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 688 and 689 is 1