Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1801 and 1803 the smallest integer that is 3247203 that is divisible by both numbers.
Least Common Multiple (LCM) of 1801 and 1803 is 3247203.
LCM(1801,1803) = 3247203
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 1801 and 1803. First we will calculate the prime factors of 1801 and 1803.
Prime Factorization of 1801
1801 | 1801 |
1 |
Prime factors of 1801 are 1801. Prime factorization of 1801 in exponential form is:
1801 = 18011
Prime Factorization of 1803
3 | 1803 |
601 | 601 |
1 |
Prime factors of 1803 are 3,601. Prime factorization of 1803 in exponential form is:
1803 = 31×6011
Now multiplying the highest exponent prime factors to calculate the LCM of 1801 and 1803.
LCM(1801,1803) = 31×6011×18011
LCM(1801,1803) = 3247203
Factors of 1801
List of positive integer factors of 1801 that divides 1801 without a remainder.
1, 1801
Factors of 1803
List of positive integer factors of 1803 that divides 1803 without a remainder.
1, 3, 601, 1803
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1801 and 1803, than apply into the LCM equation.
GCF(1801,1803) = 1
LCM(1801,1803) = ( 1801 × 1803) / 1
LCM(1801,1803) = 3247203 / 1
LCM(1801,1803) = 3247203
(i) The LCM of 1803 and 1801 is associative
LCM of 1801 and 1803 = LCM of 1803 and 1801
1. What is the LCM of 1801 and 1803?
Answer: LCM of 1801 and 1803 is 3247203.
2. What are the Factors of 1801?
Answer: Factors of 1801 are 1, 1801. There are 2 integers that are factors of 1801. The greatest factor of 1801 is 1801.
3. What are the Factors of 1803?
Answer: Factors of 1803 are 1, 3, 601, 1803. There are 4 integers that are factors of 1803. The greatest factor of 1803 is 1803.
4. How to Find the LCM of 1801 and 1803?
Answer:
Least Common Multiple of 1801 and 1803 = 3247203
Step 1: Find the prime factorization of 1801
1801 = 1801
Step 2: Find the prime factorization of 1803
1803 = 3 x 601
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3247203 = 3 x 601 x 1801
Step 4: Therefore, the least common multiple of 1801 and 1803 is 3247203.