Greatest Common Factor of 647 and 655

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 647, 655 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 647 and 655 is 1.

GCF(647,655) = 1

GCF of 647 and 655

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

GCF of:
and

Greatest Common Factor of 647 and 655

GCF of 647 and 655 is 1

Prime Factorization of 647


647 647
1

Prime factors of 647 are 647. Prime factorization of 647 in exponential form is:

647 = 6471

Prime Factorization of 655


5 655
131 131
1

Prime factors of 655 are 5.Prime factorization of 655 in exponential form is:

655 = 51×1311

∴ So by taking common prime factors GCF of 647 and 655 is 1

Greatest Common Factor of 647 and 655 by matching factors method

Factors of 647

List of positive integer factors of 647 that divides 647 without a remainder.

1,647

Factors of 655

List of positive integer factors of 655 that divides 655 without a remainder.

1,5,131,655

Greatest Common Factor

We found the factors and prime factorization of 647 and 655. The biggest common factor number is the GCF number.
So the greatest common factor 647 and 655 is 1.

Also check out the Least Common Multiple of 647 and 655

Properties of GCF 647 and 655

(i) The GCF of 647 and 655 is associative

GCF of 647 and 655 = GCF of 655 and 647

Related Greatest Common Factor of 647

Related Greatest Common Factor of 655

Frequently Asked Questions on GCF of 647 and 655

1. What is the GCF of 647 and 655?

Answer: GCF of 647 and 655 is 1.

2. What are the Factors of 647?

Answer: Factors of 647 are 1, 647. There are 2 integers that are factors of 647. The greatest factor of 647 is 647.

3. What are the Factors of 655?

Answer: Factors of 655 are 1, 5, 131, 655. There are 4 integers that are factors of 655. The greatest factor of 655 is 655.

4. How to Find the GCF of 647 and 655?

Answer:

Greatest Common Factor of 647 and 655 = 1

Step 1: Find the prime factorization of 647

647 = 647

Step 2: Find the prime factorization of 655

655 = 5 x 131

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 647 and 655 is 1