Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1587 and 1590 the smallest integer that is 841110 that is divisible by both numbers.
Least Common Multiple (LCM) of 1587 and 1590 is 841110.
LCM(1587,1590) = 841110
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 1587 and 1590. First we will calculate the prime factors of 1587 and 1590.
Prime Factorization of 1587
3 | 1587 |
23 | 529 |
23 | 23 |
1 |
Prime factors of 1587 are 3,23. Prime factorization of 1587 in exponential form is:
1587 = 31×232
Prime Factorization of 1590
2 | 1590 |
3 | 795 |
5 | 265 |
53 | 53 |
1 |
Prime factors of 1590 are 2, 3, 5,53. Prime factorization of 1590 in exponential form is:
1590 = 21×31×51×531
Now multiplying the highest exponent prime factors to calculate the LCM of 1587 and 1590.
LCM(1587,1590) = 21×31×51×232×531
LCM(1587,1590) = 841110
Factors of 1587
List of positive integer factors of 1587 that divides 1587 without a remainder.
1, 3, 23, 69, 529, 1587
Factors of 1590
List of positive integer factors of 1590 that divides 1590 without a remainder.
1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1587 and 1590, than apply into the LCM equation.
GCF(1587,1590) = 3
LCM(1587,1590) = ( 1587 × 1590) / 3
LCM(1587,1590) = 2523330 / 3
LCM(1587,1590) = 841110
(i) The LCM of 1590 and 1587 is associative
LCM of 1587 and 1590 = LCM of 1590 and 1587
1. What is the LCM of 1587 and 1590?
Answer: LCM of 1587 and 1590 is 841110.
2. What are the Factors of 1587?
Answer: Factors of 1587 are 1, 3, 23, 69, 529, 1587. There are 6 integers that are factors of 1587. The greatest factor of 1587 is 1587.
3. What are the Factors of 1590?
Answer: Factors of 1590 are 1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590. There are 16 integers that are factors of 1590. The greatest factor of 1590 is 1590.
4. How to Find the LCM of 1587 and 1590?
Answer:
Least Common Multiple of 1587 and 1590 = 841110
Step 1: Find the prime factorization of 1587
1587 = 3 x 23 x 23
Step 2: Find the prime factorization of 1590
1590 = 2 x 3 x 5 x 53
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 841110 = 2 x 3 x 5 x 23 x 23 x 53
Step 4: Therefore, the least common multiple of 1587 and 1590 is 841110.