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 20397, 20401 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 20397 and 20401 is 1.
GCF(20397,20401) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 20397
3 | 20397 |
13 | 6799 |
523 | 523 |
1 |
Prime factors of 20397 are 3,13,523. Prime factorization of 20397 in exponential form is:
20397 = 31×131×5231
Prime Factorization of 20401
23 | 20401 |
887 | 887 |
1 |
Prime factors of 20401 are 23,887. Prime factorization of 20401 in exponential form is:
20401 = 231×8871
∴ So by taking common prime factors GCF of 20397 and 20401 is 1
Factors of 20397
List of positive integer factors of 20397 that divides 20397 without a remainder.
1,3,13,39,523,1569,6799,20397
Factors of 20401
List of positive integer factors of 20401 that divides 20401 without a remainder.
1,23,887,20401
Greatest Common Factor
We found the factors and prime factorization of 20397 and 20401. The biggest common factor number is the GCF number.
So the greatest common factor 20397 and 20401 is 1.
Also check out the Least Common Multiple of 20397 and 20401
(i) The GCF of 20397 and 20401 is associative
GCF of 20397 and 20401 = GCF of 20401 and 20397
1. What is the GCF of 20397 and 20401?
Answer: GCF of 20397 and 20401 is 1.
2. What are the Factors of 20397?
Answer: Factors of 20397 are 1, 3, 13, 39, 523, 1569, 6799, 20397. There are 8 integers that are factors of 20397. The greatest factor of 20397 is 20397.
3. What are the Factors of 20401?
Answer: Factors of 20401 are 1, 23, 887, 20401. There are 4 integers that are factors of 20401. The greatest factor of 20401 is 20401.
4. How to Find the GCF of 20397 and 20401?
Answer:
Greatest Common Factor of 20397 and 20401 = 1
Step 1: Find the prime factorization of 20397
20397 = 3 x 13 x 523
Step 2: Find the prime factorization of 20401
20401 = 23 x 887
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 20397 and 20401 is 1