Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2017 and 2021 the smallest integer that is 4076357 that is divisible by both numbers.
Least Common Multiple (LCM) of 2017 and 2021 is 4076357.
LCM(2017,2021) = 4076357
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 2017 and 2021. First we will calculate the prime factors of 2017 and 2021.
Prime Factorization of 2017
2017 | 2017 |
1 |
Prime factors of 2017 are 2017. Prime factorization of 2017 in exponential form is:
2017 = 20171
Prime Factorization of 2021
43 | 2021 |
47 | 47 |
1 |
Prime factors of 2021 are 43,47. Prime factorization of 2021 in exponential form is:
2021 = 431×471
Now multiplying the highest exponent prime factors to calculate the LCM of 2017 and 2021.
LCM(2017,2021) = 431×471×20171
LCM(2017,2021) = 4076357
Factors of 2017
List of positive integer factors of 2017 that divides 2017 without a remainder.
1, 2017
Factors of 2021
List of positive integer factors of 2021 that divides 2021 without a remainder.
1, 43, 47, 2021
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2017 and 2021, than apply into the LCM equation.
GCF(2017,2021) = 1
LCM(2017,2021) = ( 2017 × 2021) / 1
LCM(2017,2021) = 4076357 / 1
LCM(2017,2021) = 4076357
(i) The LCM of 2021 and 2017 is associative
LCM of 2017 and 2021 = LCM of 2021 and 2017
1. What is the LCM of 2017 and 2021?
Answer: LCM of 2017 and 2021 is 4076357.
2. What are the Factors of 2017?
Answer: Factors of 2017 are 1, 2017. There are 2 integers that are factors of 2017. The greatest factor of 2017 is 2017.
3. What are the Factors of 2021?
Answer: Factors of 2021 are 1, 43, 47, 2021. There are 4 integers that are factors of 2021. The greatest factor of 2021 is 2021.
4. How to Find the LCM of 2017 and 2021?
Answer:
Least Common Multiple of 2017 and 2021 = 4076357
Step 1: Find the prime factorization of 2017
2017 = 2017
Step 2: Find the prime factorization of 2021
2021 = 43 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4076357 = 43 x 47 x 2017
Step 4: Therefore, the least common multiple of 2017 and 2021 is 4076357.