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 650, 655 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 650 and 655 is 5.
GCF(650,655) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 650
2 | 650 |
5 | 325 |
5 | 65 |
13 | 13 |
1 |
Prime factors of 650 are 2,5,13. Prime factorization of 650 in exponential form is:
650 = 21×52×131
Prime Factorization of 655
5 | 655 |
131 | 131 |
1 |
Prime factors of 655 are 5,131. Prime factorization of 655 in exponential form is:
655 = 51×1311
∴ So by taking common prime factors GCF of 650 and 655 is 5
Factors of 650
List of positive integer factors of 650 that divides 650 without a remainder.
1,2,5,10,13,25,26,50,65,130,325,650
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 650 and 655. The biggest common factor number is the GCF number.
So the greatest common factor 650 and 655 is 5.
Also check out the Least Common Multiple of 650 and 655
(i) The GCF of 650 and 655 is associative
GCF of 650 and 655 = GCF of 655 and 650
1. What is the GCF of 650 and 655?
Answer: GCF of 650 and 655 is 5.
2. What are the Factors of 650?
Answer: Factors of 650 are 1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650. There are 12 integers that are factors of 650. The greatest factor of 650 is 650.
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 650 and 655?
Answer:
Greatest Common Factor of 650 and 655 = 5
Step 1: Find the prime factorization of 650
650 = 2 x 5 x 5 x 13
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 = 5
Step 4: Therefore, the greatest common factor of 650 and 655 is 5