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 1891, 1892 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1891 and 1892 is 1.
GCF(1891,1892) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1891
31 | 1891 |
61 | 61 |
1 |
Prime factors of 1891 are 31,61. Prime factorization of 1891 in exponential form is:
1891 = 311×611
Prime Factorization of 1892
2 | 1892 |
2 | 946 |
11 | 473 |
43 | 43 |
1 |
Prime factors of 1892 are 2,11,43. Prime factorization of 1892 in exponential form is:
1892 = 22×111×431
∴ So by taking common prime factors GCF of 1891 and 1892 is 1
Factors of 1891
List of positive integer factors of 1891 that divides 1891 without a remainder.
1,31,61,1891
Factors of 1892
List of positive integer factors of 1892 that divides 1892 without a remainder.
1,2,4,11,22,43,44,86,172,473,946,1892
Greatest Common Factor
We found the factors and prime factorization of 1891 and 1892. The biggest common factor number is the GCF number.
So the greatest common factor 1891 and 1892 is 1.
Also check out the Least Common Multiple of 1891 and 1892
(i) The GCF of 1891 and 1892 is associative
GCF of 1891 and 1892 = GCF of 1892 and 1891
1. What is the GCF of 1891 and 1892?
Answer: GCF of 1891 and 1892 is 1.
2. What are the Factors of 1891?
Answer: Factors of 1891 are 1, 31, 61, 1891. There are 4 integers that are factors of 1891. The greatest factor of 1891 is 1891.
3. What are the Factors of 1892?
Answer: Factors of 1892 are 1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892. There are 12 integers that are factors of 1892. The greatest factor of 1892 is 1892.
4. How to Find the GCF of 1891 and 1892?
Answer:
Greatest Common Factor of 1891 and 1892 = 1
Step 1: Find the prime factorization of 1891
1891 = 31 x 61
Step 2: Find the prime factorization of 1892
1892 = 2 x 2 x 11 x 43
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 1891 and 1892 is 1