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 456, 457 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 456 and 457 is 1.
GCF(456,457) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 456
2 | 456 |
2 | 228 |
2 | 114 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 456 are 2,3,19. Prime factorization of 456 in exponential form is:
456 = 23×31×191
Prime Factorization of 457
457 | 457 |
1 |
Prime factors of 457 are 457. Prime factorization of 457 in exponential form is:
457 = 4571
∴ So by taking common prime factors GCF of 456 and 457 is 1
Factors of 456
List of positive integer factors of 456 that divides 456 without a remainder.
1,2,3,4,6,8,12,19,24,38,57,76,114,152,228,456
Factors of 457
List of positive integer factors of 457 that divides 457 without a remainder.
1,457
Greatest Common Factor
We found the factors and prime factorization of 456 and 457. The biggest common factor number is the GCF number.
So the greatest common factor 456 and 457 is 1.
Also check out the Least Common Multiple of 456 and 457
(i) The GCF of 456 and 457 is associative
GCF of 456 and 457 = GCF of 457 and 456
1. What is the GCF of 456 and 457?
Answer: GCF of 456 and 457 is 1.
2. What are the Factors of 456?
Answer: Factors of 456 are 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456. There are 16 integers that are factors of 456. The greatest factor of 456 is 456.
3. What are the Factors of 457?
Answer: Factors of 457 are 1, 457. There are 2 integers that are factors of 457. The greatest factor of 457 is 457.
4. How to Find the GCF of 456 and 457?
Answer:
Greatest Common Factor of 456 and 457 = 1
Step 1: Find the prime factorization of 456
456 = 2 x 2 x 2 x 3 x 19
Step 2: Find the prime factorization of 457
457 = 457
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 456 and 457 is 1