Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1806 and 1814 the smallest integer that is 1638042 that is divisible by both numbers.
Least Common Multiple (LCM) of 1806 and 1814 is 1638042.
LCM(1806,1814) = 1638042
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 1806 and 1814. First we will calculate the prime factors of 1806 and 1814.
Prime Factorization of 1806
2 | 1806 |
3 | 903 |
7 | 301 |
43 | 43 |
1 |
Prime factors of 1806 are 2, 3, 7,43. Prime factorization of 1806 in exponential form is:
1806 = 21×31×71×431
Prime Factorization of 1814
2 | 1814 |
907 | 907 |
1 |
Prime factors of 1814 are 2,907. Prime factorization of 1814 in exponential form is:
1814 = 21×9071
Now multiplying the highest exponent prime factors to calculate the LCM of 1806 and 1814.
LCM(1806,1814) = 21×31×71×431×9071
LCM(1806,1814) = 1638042
Factors of 1806
List of positive integer factors of 1806 that divides 1806 without a remainder.
1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806
Factors of 1814
List of positive integer factors of 1814 that divides 1814 without a remainder.
1, 2, 907, 1814
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1806 and 1814, than apply into the LCM equation.
GCF(1806,1814) = 2
LCM(1806,1814) = ( 1806 × 1814) / 2
LCM(1806,1814) = 3276084 / 2
LCM(1806,1814) = 1638042
(i) The LCM of 1814 and 1806 is associative
LCM of 1806 and 1814 = LCM of 1814 and 1806
1. What is the LCM of 1806 and 1814?
Answer: LCM of 1806 and 1814 is 1638042.
2. What are the Factors of 1806?
Answer: Factors of 1806 are 1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806. There are 16 integers that are factors of 1806. The greatest factor of 1806 is 1806.
3. What are the Factors of 1814?
Answer: Factors of 1814 are 1, 2, 907, 1814. There are 4 integers that are factors of 1814. The greatest factor of 1814 is 1814.
4. How to Find the LCM of 1806 and 1814?
Answer:
Least Common Multiple of 1806 and 1814 = 1638042
Step 1: Find the prime factorization of 1806
1806 = 2 x 3 x 7 x 43
Step 2: Find the prime factorization of 1814
1814 = 2 x 907
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1638042 = 2 x 3 x 7 x 43 x 907
Step 4: Therefore, the least common multiple of 1806 and 1814 is 1638042.