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 60, 66 i.e. 6 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 60 and 66 is 6.
GCF(60,66) = 6
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 60
2 | 60 |
2 | 30 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 60 are 2,3,5. Prime factorization of 60 in exponential form is:
60 = 22×31×51
Prime Factorization of 66
2 | 66 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 66 are 2,3,11. Prime factorization of 66 in exponential form is:
66 = 21×31×111
∴ So by taking common prime factors GCF of 60 and 66 is 6
Factors of 60
List of positive integer factors of 60 that divides 60 without a remainder.
1,2,3,4,5,6,10,12,15,20,30,60
Factors of 66
List of positive integer factors of 66 that divides 66 without a remainder.
1,2,3,6,11,22,33,66
Greatest Common Factor
We found the factors and prime factorization of 60 and 66. The biggest common factor number is the GCF number.
So the greatest common factor 60 and 66 is 6.
Also check out the Least Common Multiple of 60 and 66
(i) The GCF of 60 and 66 is associative
GCF of 60 and 66 = GCF of 66 and 60
1. What is the GCF of 60 and 66?
Answer: GCF of 60 and 66 is 6.
2. What are the Factors of 60?
Answer: Factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60. There are 12 integers that are factors of 60. The greatest factor of 60 is 60.
3. What are the Factors of 66?
Answer: Factors of 66 are 1, 2, 3, 6, 11, 22, 33, 66. There are 8 integers that are factors of 66. The greatest factor of 66 is 66.
4. How to Find the GCF of 60 and 66?
Answer:
Greatest Common Factor of 60 and 66 = 6
Step 1: Find the prime factorization of 60
60 = 2 x 2 x 3 x 5
Step 2: Find the prime factorization of 66
66 = 2 x 3 x 11
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 3 = 6
Step 4: Therefore, the greatest common factor of 60 and 66 is 6