Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2018 and 2019 the smallest integer that is 4074342 that is divisible by both numbers.
Least Common Multiple (LCM) of 2018 and 2019 is 4074342.
LCM(2018,2019) = 4074342
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 2018 and 2019. First we will calculate the prime factors of 2018 and 2019.
Prime Factorization of 2018
2 | 2018 |
1009 | 1009 |
1 |
Prime factors of 2018 are 2,1009. Prime factorization of 2018 in exponential form is:
2018 = 21×10091
Prime Factorization of 2019
3 | 2019 |
673 | 673 |
1 |
Prime factors of 2019 are 3,673. Prime factorization of 2019 in exponential form is:
2019 = 31×6731
Now multiplying the highest exponent prime factors to calculate the LCM of 2018 and 2019.
LCM(2018,2019) = 21×31×6731×10091
LCM(2018,2019) = 4074342
Factors of 2018
List of positive integer factors of 2018 that divides 2018 without a remainder.
1, 2, 1009, 2018
Factors of 2019
List of positive integer factors of 2019 that divides 2019 without a remainder.
1, 3, 673, 2019
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2018 and 2019, than apply into the LCM equation.
GCF(2018,2019) = 1
LCM(2018,2019) = ( 2018 × 2019) / 1
LCM(2018,2019) = 4074342 / 1
LCM(2018,2019) = 4074342
(i) The LCM of 2019 and 2018 is associative
LCM of 2018 and 2019 = LCM of 2019 and 2018
1. What is the LCM of 2018 and 2019?
Answer: LCM of 2018 and 2019 is 4074342.
2. What are the Factors of 2018?
Answer: Factors of 2018 are 1, 2, 1009, 2018. There are 4 integers that are factors of 2018. The greatest factor of 2018 is 2018.
3. What are the Factors of 2019?
Answer: Factors of 2019 are 1, 3, 673, 2019. There are 4 integers that are factors of 2019. The greatest factor of 2019 is 2019.
4. How to Find the LCM of 2018 and 2019?
Answer:
Least Common Multiple of 2018 and 2019 = 4074342
Step 1: Find the prime factorization of 2018
2018 = 2 x 1009
Step 2: Find the prime factorization of 2019
2019 = 3 x 673
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4074342 = 2 x 3 x 673 x 1009
Step 4: Therefore, the least common multiple of 2018 and 2019 is 4074342.