Least Common Multiple of 1803 and 1809

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Free LCM Calculator determines the least common multiple (LCM) between 1803 and 1809 the smallest integer that is 1087209 that is divisible by both numbers.

Least Common Multiple (LCM) of 1803 and 1809 is 1087209.

LCM(1803,1809) = 1087209

LCM of 1803 and 1809

Least common multiple or lowest common denominator (LCD) can be calculated in three ways;

LCM of:
and

Least Common Multiple of 1803 and 1809

LCM of 1803 and 1809 is 1087209

Least common multiple can be found by multiplying the highest exponent prime factors of 1803 and 1809. First we will calculate the prime factors of 1803 and 1809.

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

Prime Factorization of 1809


3 1809
3 603
3 201
67 67
1

Prime factors of 1809 are 3,67. Prime factorization of 1809 in exponential form is:

1809 = 33×671

Now multiplying the highest exponent prime factors to calculate the LCM of 1803 and 1809.

LCM(1803,1809) = 33×671×6011
LCM(1803,1809) = 1087209

Factors of 1803

List of positive integer factors of 1803 that divides 1803 without a remainder.

1, 3, 601, 1803

Factors of 1809

List of positive integer factors of 1809 that divides 1809 without a remainder.

1, 3, 9, 27, 67, 201, 603, 1809

Least Common Multiple of 1803 and 1809 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1803 and 1809, than apply into the LCM equation.

GCF(1803,1809) = 3
LCM(1803,1809) = ( 1803 × 1809) / 3
LCM(1803,1809) = 3261627 / 3
LCM(1803,1809) = 1087209

Properties of LCM 1803 and 1809

(i) The LCM of 1809 and 1803 is associative

LCM of 1803 and 1809 = LCM of 1809 and 1803

Related Least Common Multiples of 1803

Related Least Common Multiples of 1809

Frequently Asked Questions on LCM of 1803 and 1809

1. What is the LCM of 1803 and 1809?

Answer: LCM of 1803 and 1809 is 1087209.

2. 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.

3. What are the Factors of 1809?

Answer: Factors of 1809 are 1, 3, 9, 27, 67, 201, 603, 1809. There are 8 integers that are factors of 1809. The greatest factor of 1809 is 1809.

4. How to Find the LCM of 1803 and 1809?

Answer:

Least Common Multiple of 1803 and 1809 = 1087209

Step 1: Find the prime factorization of 1803

1803 = 3 x 601

Step 2: Find the prime factorization of 1809

1809 = 3 x 3 x 3 x 67

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 1087209 = 3 x 3 x 3 x 67 x 601

Step 4: Therefore, the least common multiple of 1803 and 1809 is 1087209.