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 455, 458 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 455 and 458 is 1.
GCF(455,458) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 455
5 | 455 |
7 | 91 |
13 | 13 |
1 |
Prime factors of 455 are 5,7,13. Prime factorization of 455 in exponential form is:
455 = 51×71×131
Prime Factorization of 458
2 | 458 |
229 | 229 |
1 |
Prime factors of 458 are 2,229. Prime factorization of 458 in exponential form is:
458 = 21×2291
∴ So by taking common prime factors GCF of 455 and 458 is 1
Factors of 455
List of positive integer factors of 455 that divides 455 without a remainder.
1,5,7,13,35,65,91,455
Factors of 458
List of positive integer factors of 458 that divides 458 without a remainder.
1,2,229,458
Greatest Common Factor
We found the factors and prime factorization of 455 and 458. The biggest common factor number is the GCF number.
So the greatest common factor 455 and 458 is 1.
Also check out the Least Common Multiple of 455 and 458
(i) The GCF of 455 and 458 is associative
GCF of 455 and 458 = GCF of 458 and 455
1. What is the GCF of 455 and 458?
Answer: GCF of 455 and 458 is 1.
2. What are the Factors of 455?
Answer: Factors of 455 are 1, 5, 7, 13, 35, 65, 91, 455. There are 8 integers that are factors of 455. The greatest factor of 455 is 455.
3. What are the Factors of 458?
Answer: Factors of 458 are 1, 2, 229, 458. There are 4 integers that are factors of 458. The greatest factor of 458 is 458.
4. How to Find the GCF of 455 and 458?
Answer:
Greatest Common Factor of 455 and 458 = 1
Step 1: Find the prime factorization of 455
455 = 5 x 7 x 13
Step 2: Find the prime factorization of 458
458 = 2 x 229
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 455 and 458 is 1