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 1812 the smallest integer that is 545412 that is divisible by both numbers.
Least Common Multiple (LCM) of 1806 and 1812 is 545412.
LCM(1806,1812) = 545412
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 1812. First we will calculate the prime factors of 1806 and 1812.
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 1812
2 | 1812 |
2 | 906 |
3 | 453 |
151 | 151 |
1 |
Prime factors of 1812 are 2, 3,151. Prime factorization of 1812 in exponential form is:
1812 = 22×31×1511
Now multiplying the highest exponent prime factors to calculate the LCM of 1806 and 1812.
LCM(1806,1812) = 22×31×71×431×1511
LCM(1806,1812) = 545412
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 1812
List of positive integer factors of 1812 that divides 1812 without a remainder.
1, 2, 3, 4, 6, 12, 151, 302, 453, 604, 906, 1812
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1806 and 1812, than apply into the LCM equation.
GCF(1806,1812) = 6
LCM(1806,1812) = ( 1806 × 1812) / 6
LCM(1806,1812) = 3272472 / 6
LCM(1806,1812) = 545412
(i) The LCM of 1812 and 1806 is associative
LCM of 1806 and 1812 = LCM of 1812 and 1806
1. What is the LCM of 1806 and 1812?
Answer: LCM of 1806 and 1812 is 545412.
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 1812?
Answer: Factors of 1812 are 1, 2, 3, 4, 6, 12, 151, 302, 453, 604, 906, 1812. There are 12 integers that are factors of 1812. The greatest factor of 1812 is 1812.
4. How to Find the LCM of 1806 and 1812?
Answer:
Least Common Multiple of 1806 and 1812 = 545412
Step 1: Find the prime factorization of 1806
1806 = 2 x 3 x 7 x 43
Step 2: Find the prime factorization of 1812
1812 = 2 x 2 x 3 x 151
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 545412 = 2 x 2 x 3 x 7 x 43 x 151
Step 4: Therefore, the least common multiple of 1806 and 1812 is 545412.