Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1005 and 1011 the smallest integer that is 338685 that is divisible by both numbers.
Least Common Multiple (LCM) of 1005 and 1011 is 338685.
LCM(1005,1011) = 338685
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 1005 and 1011. First we will calculate the prime factors of 1005 and 1011.
Prime Factorization of 1005
3 | 1005 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 1005 are 3, 5,67. Prime factorization of 1005 in exponential form is:
1005 = 31×51×671
Prime Factorization of 1011
3 | 1011 |
337 | 337 |
1 |
Prime factors of 1011 are 3,337. Prime factorization of 1011 in exponential form is:
1011 = 31×3371
Now multiplying the highest exponent prime factors to calculate the LCM of 1005 and 1011.
LCM(1005,1011) = 31×51×671×3371
LCM(1005,1011) = 338685
Factors of 1005
List of positive integer factors of 1005 that divides 1005 without a remainder.
1, 3, 5, 15, 67, 201, 335, 1005
Factors of 1011
List of positive integer factors of 1011 that divides 1011 without a remainder.
1, 3, 337, 1011
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1005 and 1011, than apply into the LCM equation.
GCF(1005,1011) = 3
LCM(1005,1011) = ( 1005 × 1011) / 3
LCM(1005,1011) = 1016055 / 3
LCM(1005,1011) = 338685
(i) The LCM of 1011 and 1005 is associative
LCM of 1005 and 1011 = LCM of 1011 and 1005
1. What is the LCM of 1005 and 1011?
Answer: LCM of 1005 and 1011 is 338685.
2. What are the Factors of 1005?
Answer: Factors of 1005 are 1, 3, 5, 15, 67, 201, 335, 1005. There are 8 integers that are factors of 1005. The greatest factor of 1005 is 1005.
3. What are the Factors of 1011?
Answer: Factors of 1011 are 1, 3, 337, 1011. There are 4 integers that are factors of 1011. The greatest factor of 1011 is 1011.
4. How to Find the LCM of 1005 and 1011?
Answer:
Least Common Multiple of 1005 and 1011 = 338685
Step 1: Find the prime factorization of 1005
1005 = 3 x 5 x 67
Step 2: Find the prime factorization of 1011
1011 = 3 x 337
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 338685 = 3 x 5 x 67 x 337
Step 4: Therefore, the least common multiple of 1005 and 1011 is 338685.