Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1830 and 1838 the smallest integer that is 1681770 that is divisible by both numbers.
Least Common Multiple (LCM) of 1830 and 1838 is 1681770.
LCM(1830,1838) = 1681770
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 1830 and 1838. First we will calculate the prime factors of 1830 and 1838.
Prime Factorization of 1830
2 | 1830 |
3 | 915 |
5 | 305 |
61 | 61 |
1 |
Prime factors of 1830 are 2, 3, 5,61. Prime factorization of 1830 in exponential form is:
1830 = 21×31×51×611
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
Now multiplying the highest exponent prime factors to calculate the LCM of 1830 and 1838.
LCM(1830,1838) = 21×31×51×611×9191
LCM(1830,1838) = 1681770
Factors of 1830
List of positive integer factors of 1830 that divides 1830 without a remainder.
1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830
Factors of 1838
List of positive integer factors of 1838 that divides 1838 without a remainder.
1, 2, 919, 1838
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1830 and 1838, than apply into the LCM equation.
GCF(1830,1838) = 2
LCM(1830,1838) = ( 1830 × 1838) / 2
LCM(1830,1838) = 3363540 / 2
LCM(1830,1838) = 1681770
(i) The LCM of 1838 and 1830 is associative
LCM of 1830 and 1838 = LCM of 1838 and 1830
1. What is the LCM of 1830 and 1838?
Answer: LCM of 1830 and 1838 is 1681770.
2. What are the Factors of 1830?
Answer: Factors of 1830 are 1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830. There are 16 integers that are factors of 1830. The greatest factor of 1830 is 1830.
3. 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.
4. How to Find the LCM of 1830 and 1838?
Answer:
Least Common Multiple of 1830 and 1838 = 1681770
Step 1: Find the prime factorization of 1830
1830 = 2 x 3 x 5 x 61
Step 2: Find the prime factorization of 1838
1838 = 2 x 919
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1681770 = 2 x 3 x 5 x 61 x 919
Step 4: Therefore, the least common multiple of 1830 and 1838 is 1681770.