Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1487 and 1491 the smallest integer that is 2217117 that is divisible by both numbers.
Least Common Multiple (LCM) of 1487 and 1491 is 2217117.
LCM(1487,1491) = 2217117
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 1487 and 1491. First we will calculate the prime factors of 1487 and 1491.
Prime Factorization of 1487
1487 | 1487 |
1 |
Prime factors of 1487 are 1487. Prime factorization of 1487 in exponential form is:
1487 = 14871
Prime Factorization of 1491
3 | 1491 |
7 | 497 |
71 | 71 |
1 |
Prime factors of 1491 are 3, 7,71. Prime factorization of 1491 in exponential form is:
1491 = 31×71×711
Now multiplying the highest exponent prime factors to calculate the LCM of 1487 and 1491.
LCM(1487,1491) = 31×71×711×14871
LCM(1487,1491) = 2217117
Factors of 1487
List of positive integer factors of 1487 that divides 1487 without a remainder.
1, 1487
Factors of 1491
List of positive integer factors of 1491 that divides 1491 without a remainder.
1, 3, 7, 21, 71, 213, 497, 1491
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1487 and 1491, than apply into the LCM equation.
GCF(1487,1491) = 1
LCM(1487,1491) = ( 1487 × 1491) / 1
LCM(1487,1491) = 2217117 / 1
LCM(1487,1491) = 2217117
(i) The LCM of 1491 and 1487 is associative
LCM of 1487 and 1491 = LCM of 1491 and 1487
1. What is the LCM of 1487 and 1491?
Answer: LCM of 1487 and 1491 is 2217117.
2. What are the Factors of 1487?
Answer: Factors of 1487 are 1, 1487. There are 2 integers that are factors of 1487. The greatest factor of 1487 is 1487.
3. What are the Factors of 1491?
Answer: Factors of 1491 are 1, 3, 7, 21, 71, 213, 497, 1491. There are 8 integers that are factors of 1491. The greatest factor of 1491 is 1491.
4. How to Find the LCM of 1487 and 1491?
Answer:
Least Common Multiple of 1487 and 1491 = 2217117
Step 1: Find the prime factorization of 1487
1487 = 1487
Step 2: Find the prime factorization of 1491
1491 = 3 x 7 x 71
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2217117 = 3 x 7 x 71 x 1487
Step 4: Therefore, the least common multiple of 1487 and 1491 is 2217117.