Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2002 and 2009 the smallest integer that is 574574 that is divisible by both numbers.
Least Common Multiple (LCM) of 2002 and 2009 is 574574.
LCM(2002,2009) = 574574
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 2002 and 2009. First we will calculate the prime factors of 2002 and 2009.
Prime Factorization of 2002
2 | 2002 |
7 | 1001 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 2002 are 2, 7, 11,13. Prime factorization of 2002 in exponential form is:
2002 = 21×71×111×131
Prime Factorization of 2009
7 | 2009 |
7 | 287 |
41 | 41 |
1 |
Prime factors of 2009 are 7,41. Prime factorization of 2009 in exponential form is:
2009 = 72×411
Now multiplying the highest exponent prime factors to calculate the LCM of 2002 and 2009.
LCM(2002,2009) = 21×72×111×131×411
LCM(2002,2009) = 574574
Factors of 2002
List of positive integer factors of 2002 that divides 2002 without a remainder.
1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002
Factors of 2009
List of positive integer factors of 2009 that divides 2009 without a remainder.
1, 7, 41, 49, 287, 2009
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2002 and 2009, than apply into the LCM equation.
GCF(2002,2009) = 7
LCM(2002,2009) = ( 2002 × 2009) / 7
LCM(2002,2009) = 4022018 / 7
LCM(2002,2009) = 574574
(i) The LCM of 2009 and 2002 is associative
LCM of 2002 and 2009 = LCM of 2009 and 2002
1. What is the LCM of 2002 and 2009?
Answer: LCM of 2002 and 2009 is 574574.
2. What are the Factors of 2002?
Answer: Factors of 2002 are 1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002. There are 16 integers that are factors of 2002. The greatest factor of 2002 is 2002.
3. What are the Factors of 2009?
Answer: Factors of 2009 are 1, 7, 41, 49, 287, 2009. There are 6 integers that are factors of 2009. The greatest factor of 2009 is 2009.
4. How to Find the LCM of 2002 and 2009?
Answer:
Least Common Multiple of 2002 and 2009 = 574574
Step 1: Find the prime factorization of 2002
2002 = 2 x 7 x 11 x 13
Step 2: Find the prime factorization of 2009
2009 = 7 x 7 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 574574 = 2 x 7 x 7 x 11 x 13 x 41
Step 4: Therefore, the least common multiple of 2002 and 2009 is 574574.