Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1003 and 1008 the smallest integer that is 1011024 that is divisible by both numbers.
Least Common Multiple (LCM) of 1003 and 1008 is 1011024.
LCM(1003,1008) = 1011024
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 1003 and 1008. First we will calculate the prime factors of 1003 and 1008.
Prime Factorization of 1003
17 | 1003 |
59 | 59 |
1 |
Prime factors of 1003 are 17,59. Prime factorization of 1003 in exponential form is:
1003 = 171×591
Prime Factorization of 1008
2 | 1008 |
2 | 504 |
2 | 252 |
2 | 126 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 1008 are 2, 3,7. Prime factorization of 1008 in exponential form is:
1008 = 24×32×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1003 and 1008.
LCM(1003,1008) = 24×32×71×171×591
LCM(1003,1008) = 1011024
Factors of 1003
List of positive integer factors of 1003 that divides 1003 without a remainder.
1, 17, 59, 1003
Factors of 1008
List of positive integer factors of 1008 that divides 1008 without a remainder.
1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1003 and 1008, than apply into the LCM equation.
GCF(1003,1008) = 1
LCM(1003,1008) = ( 1003 × 1008) / 1
LCM(1003,1008) = 1011024 / 1
LCM(1003,1008) = 1011024
(i) The LCM of 1008 and 1003 is associative
LCM of 1003 and 1008 = LCM of 1008 and 1003
1. What is the LCM of 1003 and 1008?
Answer: LCM of 1003 and 1008 is 1011024.
2. What are the Factors of 1003?
Answer: Factors of 1003 are 1, 17, 59, 1003. There are 4 integers that are factors of 1003. The greatest factor of 1003 is 1003.
3. What are the Factors of 1008?
Answer: Factors of 1008 are 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008. There are 30 integers that are factors of 1008. The greatest factor of 1008 is 1008.
4. How to Find the LCM of 1003 and 1008?
Answer:
Least Common Multiple of 1003 and 1008 = 1011024
Step 1: Find the prime factorization of 1003
1003 = 17 x 59
Step 2: Find the prime factorization of 1008
1008 = 2 x 2 x 2 x 2 x 3 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1011024 = 2 x 2 x 2 x 2 x 3 x 3 x 7 x 17 x 59
Step 4: Therefore, the least common multiple of 1003 and 1008 is 1011024.