Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2005 and 2006 the smallest integer that is 4022030 that is divisible by both numbers.
Least Common Multiple (LCM) of 2005 and 2006 is 4022030.
LCM(2005,2006) = 4022030
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 2005 and 2006. First we will calculate the prime factors of 2005 and 2006.
Prime Factorization of 2005
5 | 2005 |
401 | 401 |
1 |
Prime factors of 2005 are 5,401. Prime factorization of 2005 in exponential form is:
2005 = 51×4011
Prime Factorization of 2006
2 | 2006 |
17 | 1003 |
59 | 59 |
1 |
Prime factors of 2006 are 2, 17,59. Prime factorization of 2006 in exponential form is:
2006 = 21×171×591
Now multiplying the highest exponent prime factors to calculate the LCM of 2005 and 2006.
LCM(2005,2006) = 21×51×171×591×4011
LCM(2005,2006) = 4022030
Factors of 2005
List of positive integer factors of 2005 that divides 2005 without a remainder.
1, 5, 401, 2005
Factors of 2006
List of positive integer factors of 2006 that divides 2006 without a remainder.
1, 2, 17, 34, 59, 118, 1003, 2006
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2005 and 2006, than apply into the LCM equation.
GCF(2005,2006) = 1
LCM(2005,2006) = ( 2005 × 2006) / 1
LCM(2005,2006) = 4022030 / 1
LCM(2005,2006) = 4022030
(i) The LCM of 2006 and 2005 is associative
LCM of 2005 and 2006 = LCM of 2006 and 2005
1. What is the LCM of 2005 and 2006?
Answer: LCM of 2005 and 2006 is 4022030.
2. What are the Factors of 2005?
Answer: Factors of 2005 are 1, 5, 401, 2005. There are 4 integers that are factors of 2005. The greatest factor of 2005 is 2005.
3. What are the Factors of 2006?
Answer: Factors of 2006 are 1, 2, 17, 34, 59, 118, 1003, 2006. There are 8 integers that are factors of 2006. The greatest factor of 2006 is 2006.
4. How to Find the LCM of 2005 and 2006?
Answer:
Least Common Multiple of 2005 and 2006 = 4022030
Step 1: Find the prime factorization of 2005
2005 = 5 x 401
Step 2: Find the prime factorization of 2006
2006 = 2 x 17 x 59
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4022030 = 2 x 5 x 17 x 59 x 401
Step 4: Therefore, the least common multiple of 2005 and 2006 is 4022030.