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 1004 the smallest integer that is 1007012 that is divisible by both numbers.
Least Common Multiple (LCM) of 1003 and 1004 is 1007012.
LCM(1003,1004) = 1007012
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 1004. First we will calculate the prime factors of 1003 and 1004.
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 1004
2 | 1004 |
2 | 502 |
251 | 251 |
1 |
Prime factors of 1004 are 2,251. Prime factorization of 1004 in exponential form is:
1004 = 22×2511
Now multiplying the highest exponent prime factors to calculate the LCM of 1003 and 1004.
LCM(1003,1004) = 22×171×591×2511
LCM(1003,1004) = 1007012
Factors of 1003
List of positive integer factors of 1003 that divides 1003 without a remainder.
1, 17, 59, 1003
Factors of 1004
List of positive integer factors of 1004 that divides 1004 without a remainder.
1, 2, 4, 251, 502, 1004
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1003 and 1004, than apply into the LCM equation.
GCF(1003,1004) = 1
LCM(1003,1004) = ( 1003 × 1004) / 1
LCM(1003,1004) = 1007012 / 1
LCM(1003,1004) = 1007012
(i) The LCM of 1004 and 1003 is associative
LCM of 1003 and 1004 = LCM of 1004 and 1003
1. What is the LCM of 1003 and 1004?
Answer: LCM of 1003 and 1004 is 1007012.
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 1004?
Answer: Factors of 1004 are 1, 2, 4, 251, 502, 1004. There are 6 integers that are factors of 1004. The greatest factor of 1004 is 1004.
4. How to Find the LCM of 1003 and 1004?
Answer:
Least Common Multiple of 1003 and 1004 = 1007012
Step 1: Find the prime factorization of 1003
1003 = 17 x 59
Step 2: Find the prime factorization of 1004
1004 = 2 x 2 x 251
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1007012 = 2 x 2 x 17 x 59 x 251
Step 4: Therefore, the least common multiple of 1003 and 1004 is 1007012.