Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1804 and 1808 the smallest integer that is 815408 that is divisible by both numbers.
Least Common Multiple (LCM) of 1804 and 1808 is 815408.
LCM(1804,1808) = 815408
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 1804 and 1808. First we will calculate the prime factors of 1804 and 1808.
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
Prime Factorization of 1808
2 | 1808 |
2 | 904 |
2 | 452 |
2 | 226 |
113 | 113 |
1 |
Prime factors of 1808 are 2,113. Prime factorization of 1808 in exponential form is:
1808 = 24×1131
Now multiplying the highest exponent prime factors to calculate the LCM of 1804 and 1808.
LCM(1804,1808) = 24×111×411×1131
LCM(1804,1808) = 815408
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
Factors of 1808
List of positive integer factors of 1808 that divides 1808 without a remainder.
1, 2, 4, 8, 16, 113, 226, 452, 904, 1808
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1804 and 1808, than apply into the LCM equation.
GCF(1804,1808) = 4
LCM(1804,1808) = ( 1804 × 1808) / 4
LCM(1804,1808) = 3261632 / 4
LCM(1804,1808) = 815408
(i) The LCM of 1808 and 1804 is associative
LCM of 1804 and 1808 = LCM of 1808 and 1804
1. What is the LCM of 1804 and 1808?
Answer: LCM of 1804 and 1808 is 815408.
2. 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.
3. What are the Factors of 1808?
Answer: Factors of 1808 are 1, 2, 4, 8, 16, 113, 226, 452, 904, 1808. There are 10 integers that are factors of 1808. The greatest factor of 1808 is 1808.
4. How to Find the LCM of 1804 and 1808?
Answer:
Least Common Multiple of 1804 and 1808 = 815408
Step 1: Find the prime factorization of 1804
1804 = 2 x 2 x 11 x 41
Step 2: Find the prime factorization of 1808
1808 = 2 x 2 x 2 x 2 x 113
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 815408 = 2 x 2 x 2 x 2 x 11 x 41 x 113
Step 4: Therefore, the least common multiple of 1804 and 1808 is 815408.