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 290, 291 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 290 and 291 is 1.
GCF(290,291) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 290
2 | 290 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 290 are 2,5,29. Prime factorization of 290 in exponential form is:
290 = 21×51×291
Prime Factorization of 291
3 | 291 |
97 | 97 |
1 |
Prime factors of 291 are 3,97. Prime factorization of 291 in exponential form is:
291 = 31×971
∴ So by taking common prime factors GCF of 290 and 291 is 1
Factors of 290
List of positive integer factors of 290 that divides 290 without a remainder.
1,2,5,10,29,58,145,290
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 290 and 291. The biggest common factor number is the GCF number.
So the greatest common factor 290 and 291 is 1.
Also check out the Least Common Multiple of 290 and 291
(i) The GCF of 290 and 291 is associative
GCF of 290 and 291 = GCF of 291 and 290
1. What is the GCF of 290 and 291?
Answer: GCF of 290 and 291 is 1.
2. What are the Factors of 290?
Answer: Factors of 290 are 1, 2, 5, 10, 29, 58, 145, 290. There are 8 integers that are factors of 290. The greatest factor of 290 is 290.
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 290 and 291?
Answer:
Greatest Common Factor of 290 and 291 = 1
Step 1: Find the prime factorization of 290
290 = 2 x 5 x 29
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 290 and 291 is 1