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 666, 667 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 666 and 667 is 1.
GCF(666,667) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 666
2 | 666 |
3 | 333 |
3 | 111 |
37 | 37 |
1 |
Prime factors of 666 are 2,3,37. Prime factorization of 666 in exponential form is:
666 = 21×32×371
Prime Factorization of 667
23 | 667 |
29 | 29 |
1 |
Prime factors of 667 are 23,29. Prime factorization of 667 in exponential form is:
667 = 231×291
∴ So by taking common prime factors GCF of 666 and 667 is 1
Factors of 666
List of positive integer factors of 666 that divides 666 without a remainder.
1,2,3,6,9,18,37,74,111,222,333,666
Factors of 667
List of positive integer factors of 667 that divides 667 without a remainder.
1,23,29,667
Greatest Common Factor
We found the factors and prime factorization of 666 and 667. The biggest common factor number is the GCF number.
So the greatest common factor 666 and 667 is 1.
Also check out the Least Common Multiple of 666 and 667
(i) The GCF of 666 and 667 is associative
GCF of 666 and 667 = GCF of 667 and 666
1. What is the GCF of 666 and 667?
Answer: GCF of 666 and 667 is 1.
2. What are the Factors of 666?
Answer: Factors of 666 are 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666. There are 12 integers that are factors of 666. The greatest factor of 666 is 666.
3. What are the Factors of 667?
Answer: Factors of 667 are 1, 23, 29, 667. There are 4 integers that are factors of 667. The greatest factor of 667 is 667.
4. How to Find the GCF of 666 and 667?
Answer:
Greatest Common Factor of 666 and 667 = 1
Step 1: Find the prime factorization of 666
666 = 2 x 3 x 3 x 37
Step 2: Find the prime factorization of 667
667 = 23 x 29
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 666 and 667 is 1