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 1838, 1840 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1838 and 1840 is 2.
GCF(1838,1840) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1838
2 | 1838 |
919 | 919 |
1 |
Prime factors of 1838 are 2,919. Prime factorization of 1838 in exponential form is:
1838 = 21×9191
Prime Factorization of 1840
2 | 1840 |
2 | 920 |
2 | 460 |
2 | 230 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 1840 are 2,5,23. Prime factorization of 1840 in exponential form is:
1840 = 24×51×231
∴ So by taking common prime factors GCF of 1838 and 1840 is 2
Factors of 1838
List of positive integer factors of 1838 that divides 1838 without a remainder.
1,2,919,1838
Factors of 1840
List of positive integer factors of 1840 that divides 1840 without a remainder.
1,2,4,5,8,10,16,20,23,40,46,80,92,115,184,230,368,460,920,1840
Greatest Common Factor
We found the factors and prime factorization of 1838 and 1840. The biggest common factor number is the GCF number.
So the greatest common factor 1838 and 1840 is 2.
Also check out the Least Common Multiple of 1838 and 1840
(i) The GCF of 1838 and 1840 is associative
GCF of 1838 and 1840 = GCF of 1840 and 1838
1. What is the GCF of 1838 and 1840?
Answer: GCF of 1838 and 1840 is 2.
2. What are the Factors of 1838?
Answer: Factors of 1838 are 1, 2, 919, 1838. There are 4 integers that are factors of 1838. The greatest factor of 1838 is 1838.
3. What are the Factors of 1840?
Answer: Factors of 1840 are 1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840. There are 20 integers that are factors of 1840. The greatest factor of 1840 is 1840.
4. How to Find the GCF of 1838 and 1840?
Answer:
Greatest Common Factor of 1838 and 1840 = 2
Step 1: Find the prime factorization of 1838
1838 = 2 x 919
Step 2: Find the prime factorization of 1840
1840 = 2 x 2 x 2 x 2 x 5 x 23
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 1838 and 1840 is 2