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 289, 291 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 289 and 291 is 1.
GCF(289,291) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 289
17 | 289 |
17 | 17 |
1 |
Prime factors of 289 are 17. Prime factorization of 289 in exponential form is:
289 = 172
Prime Factorization of 291
3 | 291 |
97 | 97 |
1 |
Prime factors of 291 are 3.Prime factorization of 291 in exponential form is:
291 = 31×971
∴ So by taking common prime factors GCF of 289 and 291 is 1
Factors of 289
List of positive integer factors of 289 that divides 289 without a remainder.
1,17,289
Factors of 291
List of positive integer factors of 291 that divides 291 without a remainder.
1,3,97,291
Greatest Common Factor
We found the factors and prime factorization of 289 and 291. The biggest common factor number is the GCF number.
So the greatest common factor 289 and 291 is 1.
Also check out the Least Common Multiple of 289 and 291
(i) The GCF of 289 and 291 is associative
GCF of 289 and 291 = GCF of 291 and 289
1. What is the GCF of 289 and 291?
Answer: GCF of 289 and 291 is 1.
2. What are the Factors of 289?
Answer: Factors of 289 are 1, 17, 289. There are 3 integers that are factors of 289. The greatest factor of 289 is 289.
3. What are the Factors of 291?
Answer: Factors of 291 are 1, 3, 97, 291. There are 4 integers that are factors of 291. The greatest factor of 291 is 291.
4. How to Find the GCF of 289 and 291?
Answer:
Greatest Common Factor of 289 and 291 = 1
Step 1: Find the prime factorization of 289
289 = 17 x 17
Step 2: Find the prime factorization of 291
291 = 3 x 97
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 289 and 291 is 1