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 1897, 1905 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1897 and 1905 is 1.
GCF(1897,1905) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1897
7 | 1897 |
271 | 271 |
1 |
Prime factors of 1897 are 7,271. Prime factorization of 1897 in exponential form is:
1897 = 71×2711
Prime Factorization of 1905
3 | 1905 |
5 | 635 |
127 | 127 |
1 |
Prime factors of 1905 are 3,5,127. Prime factorization of 1905 in exponential form is:
1905 = 31×51×1271
∴ So by taking common prime factors GCF of 1897 and 1905 is 1
Factors of 1897
List of positive integer factors of 1897 that divides 1897 without a remainder.
1,7,271,1897
Factors of 1905
List of positive integer factors of 1905 that divides 1905 without a remainder.
1,3,5,15,127,381,635,1905
Greatest Common Factor
We found the factors and prime factorization of 1897 and 1905. The biggest common factor number is the GCF number.
So the greatest common factor 1897 and 1905 is 1.
Also check out the Least Common Multiple of 1897 and 1905
(i) The GCF of 1897 and 1905 is associative
GCF of 1897 and 1905 = GCF of 1905 and 1897
1. What is the GCF of 1897 and 1905?
Answer: GCF of 1897 and 1905 is 1.
2. What are the Factors of 1897?
Answer: Factors of 1897 are 1, 7, 271, 1897. There are 4 integers that are factors of 1897. The greatest factor of 1897 is 1897.
3. What are the Factors of 1905?
Answer: Factors of 1905 are 1, 3, 5, 15, 127, 381, 635, 1905. There are 8 integers that are factors of 1905. The greatest factor of 1905 is 1905.
4. How to Find the GCF of 1897 and 1905?
Answer:
Greatest Common Factor of 1897 and 1905 = 1
Step 1: Find the prime factorization of 1897
1897 = 7 x 271
Step 2: Find the prime factorization of 1905
1905 = 3 x 5 x 127
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 1897 and 1905 is 1