Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1800 and 1804 the smallest integer that is 811800 that is divisible by both numbers.
Least Common Multiple (LCM) of 1800 and 1804 is 811800.
LCM(1800,1804) = 811800
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 1800 and 1804. First we will calculate the prime factors of 1800 and 1804.
Prime Factorization of 1800
2 | 1800 |
2 | 900 |
2 | 450 |
3 | 225 |
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 1800 are 2, 3,5. Prime factorization of 1800 in exponential form is:
1800 = 23×32×52
Prime Factorization of 1804
2 | 1804 |
2 | 902 |
11 | 451 |
41 | 41 |
1 |
Prime factors of 1804 are 2, 11,41. Prime factorization of 1804 in exponential form is:
1804 = 22×111×411
Now multiplying the highest exponent prime factors to calculate the LCM of 1800 and 1804.
LCM(1800,1804) = 23×32×52×111×411
LCM(1800,1804) = 811800
Factors of 1800
List of positive integer factors of 1800 that divides 1800 without a remainder.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800
Factors of 1804
List of positive integer factors of 1804 that divides 1804 without a remainder.
1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1800 and 1804, than apply into the LCM equation.
GCF(1800,1804) = 4
LCM(1800,1804) = ( 1800 × 1804) / 4
LCM(1800,1804) = 3247200 / 4
LCM(1800,1804) = 811800
(i) The LCM of 1804 and 1800 is associative
LCM of 1800 and 1804 = LCM of 1804 and 1800
1. What is the LCM of 1800 and 1804?
Answer: LCM of 1800 and 1804 is 811800.
2. What are the Factors of 1800?
Answer: Factors of 1800 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800. There are 36 integers that are factors of 1800. The greatest factor of 1800 is 1800.
3. What are the Factors of 1804?
Answer: Factors of 1804 are 1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804. There are 12 integers that are factors of 1804. The greatest factor of 1804 is 1804.
4. How to Find the LCM of 1800 and 1804?
Answer:
Least Common Multiple of 1800 and 1804 = 811800
Step 1: Find the prime factorization of 1800
1800 = 2 x 2 x 2 x 3 x 3 x 5 x 5
Step 2: Find the prime factorization of 1804
1804 = 2 x 2 x 11 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 811800 = 2 x 2 x 2 x 3 x 3 x 5 x 5 x 11 x 41
Step 4: Therefore, the least common multiple of 1800 and 1804 is 811800.