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, 223 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 217 and 223 is 1.
GCF(217,223) = 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 223
223 | 223 |
1 |
Prime factors of 223 are 223. Prime factorization of 223 in exponential form is:
223 = 2231
∴ So by taking common prime factors GCF of 217 and 223 is 1
Factors of 217
List of positive integer factors of 217 that divides 217 without a remainder.
1,7,31,217
Factors of 223
List of positive integer factors of 223 that divides 223 without a remainder.
1,223
Greatest Common Factor
We found the factors and prime factorization of 217 and 223. The biggest common factor number is the GCF number.
So the greatest common factor 217 and 223 is 1.
Also check out the Least Common Multiple of 217 and 223
(i) The GCF of 217 and 223 is associative
GCF of 217 and 223 = GCF of 223 and 217
1. What is the GCF of 217 and 223?
Answer: GCF of 217 and 223 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 223?
Answer: Factors of 223 are 1, 223. There are 2 integers that are factors of 223. The greatest factor of 223 is 223.
4. How to Find the GCF of 217 and 223?
Answer:
Greatest Common Factor of 217 and 223 = 1
Step 1: Find the prime factorization of 217
217 = 7 x 31
Step 2: Find the prime factorization of 223
223 = 223
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 223 is 1