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 20457, 20464 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 20457 and 20464 is 1.
GCF(20457,20464) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 20457
3 | 20457 |
3 | 6819 |
2273 | 2273 |
1 |
Prime factors of 20457 are 3,2273. Prime factorization of 20457 in exponential form is:
20457 = 32×22731
Prime Factorization of 20464
2 | 20464 |
2 | 10232 |
2 | 5116 |
2 | 2558 |
1279 | 1279 |
1 |
Prime factors of 20464 are 2,1279. Prime factorization of 20464 in exponential form is:
20464 = 24×12791
∴ So by taking common prime factors GCF of 20457 and 20464 is 1
Factors of 20457
List of positive integer factors of 20457 that divides 20457 without a remainder.
1,3,9,2273,6819,20457
Factors of 20464
List of positive integer factors of 20464 that divides 20464 without a remainder.
1,2,4,8,16,1279,2558,5116,10232,20464
Greatest Common Factor
We found the factors and prime factorization of 20457 and 20464. The biggest common factor number is the GCF number.
So the greatest common factor 20457 and 20464 is 1.
Also check out the Least Common Multiple of 20457 and 20464
(i) The GCF of 20457 and 20464 is associative
GCF of 20457 and 20464 = GCF of 20464 and 20457
1. What is the GCF of 20457 and 20464?
Answer: GCF of 20457 and 20464 is 1.
2. What are the Factors of 20457?
Answer: Factors of 20457 are 1, 3, 9, 2273, 6819, 20457. There are 6 integers that are factors of 20457. The greatest factor of 20457 is 20457.
3. What are the Factors of 20464?
Answer: Factors of 20464 are 1, 2, 4, 8, 16, 1279, 2558, 5116, 10232, 20464. There are 10 integers that are factors of 20464. The greatest factor of 20464 is 20464.
4. How to Find the GCF of 20457 and 20464?
Answer:
Greatest Common Factor of 20457 and 20464 = 1
Step 1: Find the prime factorization of 20457
20457 = 3 x 3 x 2273
Step 2: Find the prime factorization of 20464
20464 = 2 x 2 x 2 x 2 x 1279
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 20457 and 20464 is 1