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 20398, 20404 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 20398 and 20404 is 2.
GCF(20398,20404) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 20398
2 | 20398 |
7 | 10199 |
31 | 1457 |
47 | 47 |
1 |
Prime factors of 20398 are 2,7,31,47. Prime factorization of 20398 in exponential form is:
20398 = 21×71×311×471
Prime Factorization of 20404
2 | 20404 |
2 | 10202 |
5101 | 5101 |
1 |
Prime factors of 20404 are 2,5101. Prime factorization of 20404 in exponential form is:
20404 = 22×51011
∴ So by taking common prime factors GCF of 20398 and 20404 is 2
Factors of 20398
List of positive integer factors of 20398 that divides 20398 without a remainder.
1,2,7,14,31,47,62,94,217,329,434,658,1457,2914,10199,20398
Factors of 20404
List of positive integer factors of 20404 that divides 20404 without a remainder.
1,2,4,5101,10202,20404
Greatest Common Factor
We found the factors and prime factorization of 20398 and 20404. The biggest common factor number is the GCF number.
So the greatest common factor 20398 and 20404 is 2.
Also check out the Least Common Multiple of 20398 and 20404
(i) The GCF of 20398 and 20404 is associative
GCF of 20398 and 20404 = GCF of 20404 and 20398
1. What is the GCF of 20398 and 20404?
Answer: GCF of 20398 and 20404 is 2.
2. What are the Factors of 20398?
Answer: Factors of 20398 are 1, 2, 7, 14, 31, 47, 62, 94, 217, 329, 434, 658, 1457, 2914, 10199, 20398. There are 16 integers that are factors of 20398. The greatest factor of 20398 is 20398.
3. What are the Factors of 20404?
Answer: Factors of 20404 are 1, 2, 4, 5101, 10202, 20404. There are 6 integers that are factors of 20404. The greatest factor of 20404 is 20404.
4. How to Find the GCF of 20398 and 20404?
Answer:
Greatest Common Factor of 20398 and 20404 = 2
Step 1: Find the prime factorization of 20398
20398 = 2 x 7 x 31 x 47
Step 2: Find the prime factorization of 20404
20404 = 2 x 2 x 5101
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 20398 and 20404 is 2