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 648, 650 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 648 and 650 is 2.
GCF(648,650) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 648
2 | 648 |
2 | 324 |
2 | 162 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 648 are 2,3. Prime factorization of 648 in exponential form is:
648 = 23×34
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
∴ So by taking common prime factors GCF of 648 and 650 is 2
Factors of 648
List of positive integer factors of 648 that divides 648 without a remainder.
1,2,3,4,6,8,9,12,18,24,27,36,54,72,81,108,162,216,324,648
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
Greatest Common Factor
We found the factors and prime factorization of 648 and 650. The biggest common factor number is the GCF number.
So the greatest common factor 648 and 650 is 2.
Also check out the Least Common Multiple of 648 and 650
(i) The GCF of 648 and 650 is associative
GCF of 648 and 650 = GCF of 650 and 648
1. What is the GCF of 648 and 650?
Answer: GCF of 648 and 650 is 2.
2. What are the Factors of 648?
Answer: Factors of 648 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648. There are 20 integers that are factors of 648. The greatest factor of 648 is 648.
3. 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.
4. How to Find the GCF of 648 and 650?
Answer:
Greatest Common Factor of 648 and 650 = 2
Step 1: Find the prime factorization of 648
648 = 2 x 2 x 2 x 3 x 3 x 3 x 3
Step 2: Find the prime factorization of 650
650 = 2 x 5 x 5 x 13
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 648 and 650 is 2