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 210, 216 i.e. 6 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 210 and 216 is 6.
GCF(210,216) = 6
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 210
2 | 210 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 210 are 2,3,5,7. Prime factorization of 210 in exponential form is:
210 = 21×31×51×71
Prime Factorization of 216
2 | 216 |
2 | 108 |
2 | 54 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 216 are 2,3. Prime factorization of 216 in exponential form is:
216 = 23×33
∴ So by taking common prime factors GCF of 210 and 216 is 6
Factors of 210
List of positive integer factors of 210 that divides 210 without a remainder.
1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210
Factors of 216
List of positive integer factors of 216 that divides 216 without a remainder.
1,2,3,4,6,8,9,12,18,24,27,36,54,72,108,216
Greatest Common Factor
We found the factors and prime factorization of 210 and 216. The biggest common factor number is the GCF number.
So the greatest common factor 210 and 216 is 6.
Also check out the Least Common Multiple of 210 and 216
(i) The GCF of 210 and 216 is associative
GCF of 210 and 216 = GCF of 216 and 210
1. What is the GCF of 210 and 216?
Answer: GCF of 210 and 216 is 6.
2. What are the Factors of 210?
Answer: Factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210. There are 16 integers that are factors of 210. The greatest factor of 210 is 210.
3. What are the Factors of 216?
Answer: Factors of 216 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216. There are 16 integers that are factors of 216. The greatest factor of 216 is 216.
4. How to Find the GCF of 210 and 216?
Answer:
Greatest Common Factor of 210 and 216 = 6
Step 1: Find the prime factorization of 210
210 = 2 x 3 x 5 x 7
Step 2: Find the prime factorization of 216
216 = 2 x 2 x 2 x 3 x 3 x 3
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 210 and 216 is 6