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 550, 555 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 550 and 555 is 5.
GCF(550,555) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 550
2 | 550 |
5 | 275 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 550 are 2,5,11. Prime factorization of 550 in exponential form is:
550 = 21×52×111
Prime Factorization of 555
3 | 555 |
5 | 185 |
37 | 37 |
1 |
Prime factors of 555 are 3,5,37. Prime factorization of 555 in exponential form is:
555 = 31×51×371
∴ So by taking common prime factors GCF of 550 and 555 is 5
Factors of 550
List of positive integer factors of 550 that divides 550 without a remainder.
1,2,5,10,11,22,25,50,55,110,275,550
Factors of 555
List of positive integer factors of 555 that divides 555 without a remainder.
1,3,5,15,37,111,185,555
Greatest Common Factor
We found the factors and prime factorization of 550 and 555. The biggest common factor number is the GCF number.
So the greatest common factor 550 and 555 is 5.
Also check out the Least Common Multiple of 550 and 555
(i) The GCF of 550 and 555 is associative
GCF of 550 and 555 = GCF of 555 and 550
1. What is the GCF of 550 and 555?
Answer: GCF of 550 and 555 is 5.
2. What are the Factors of 550?
Answer: Factors of 550 are 1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550. There are 12 integers that are factors of 550. The greatest factor of 550 is 550.
3. What are the Factors of 555?
Answer: Factors of 555 are 1, 3, 5, 15, 37, 111, 185, 555. There are 8 integers that are factors of 555. The greatest factor of 555 is 555.
4. How to Find the GCF of 550 and 555?
Answer:
Greatest Common Factor of 550 and 555 = 5
Step 1: Find the prime factorization of 550
550 = 2 x 5 x 5 x 11
Step 2: Find the prime factorization of 555
555 = 3 x 5 x 37
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 550 and 555 is 5