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 217, 222 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 217 and 222 is 1.
GCF(217,222) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 217
7 | 217 |
31 | 31 |
1 |
Prime factors of 217 are 7,31. Prime factorization of 217 in exponential form is:
217 = 71×311
Prime Factorization of 222
2 | 222 |
3 | 111 |
37 | 37 |
1 |
Prime factors of 222 are 2,3,37. Prime factorization of 222 in exponential form is:
222 = 21×31×371
∴ So by taking common prime factors GCF of 217 and 222 is 1
Factors of 217
List of positive integer factors of 217 that divides 217 without a remainder.
1,7,31,217
Factors of 222
List of positive integer factors of 222 that divides 222 without a remainder.
1,2,3,6,37,74,111,222
Greatest Common Factor
We found the factors and prime factorization of 217 and 222. The biggest common factor number is the GCF number.
So the greatest common factor 217 and 222 is 1.
Also check out the Least Common Multiple of 217 and 222
(i) The GCF of 217 and 222 is associative
GCF of 217 and 222 = GCF of 222 and 217
1. What is the GCF of 217 and 222?
Answer: GCF of 217 and 222 is 1.
2. What are the Factors of 217?
Answer: Factors of 217 are 1, 7, 31, 217. There are 4 integers that are factors of 217. The greatest factor of 217 is 217.
3. What are the Factors of 222?
Answer: Factors of 222 are 1, 2, 3, 6, 37, 74, 111, 222. There are 8 integers that are factors of 222. The greatest factor of 222 is 222.
4. How to Find the GCF of 217 and 222?
Answer:
Greatest Common Factor of 217 and 222 = 1
Step 1: Find the prime factorization of 217
217 = 7 x 31
Step 2: Find the prime factorization of 222
222 = 2 x 3 x 37
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 217 and 222 is 1