LCM of 87 and 250
21750 is the LCM of 87 and 250. The step-by-step solution using prime factors and special division methods is one of the simple methods to easily understand how to find what is the LCM of 87 and 250, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 87 and 250?
lcm (87 250) = (?)
87 => 3 x 29
250 => 2 x 5 x 5 x 5
= 3 x 29 x 2 x 5 x 5 x 5
= 21750
lcm (87 and 250) = 21750
21750 is the LCM of 87 and 250.
where,
87 is a positive integer,
250 is a positive integer,
21750 is the LCM of 87 and 250,
There is no common factors of 87 and 250 in {3 x 29, 2 x 5 x 5 x 5},
{3 x 29 x 2 x 5 x 5 x 5} in {3 x 29, 2 x 5 x 5 x 5} are the uncommon factors of 87 and 250.
Use in Mathematics: LCM of 87 and 250
The below are some of the mathematical applications where lcm of 87 and 250 can be used:
- to find the least number which is exactly divisible by 87 and 250.
- to find the common denominator for two fractions having 87 and 250 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 87 and 250 helps to find the exact time when two similar and recurring events with different time schedule happens together at the same time. For example, the real world problems involve lcm in situations to find at what time the bells A and B all toll together, if bell A tolls at 87 seconds and bell B tolls at 250 seconds repeatedly. The answer is that all bells A and B toll together at 21750 seconds for the first time, at 43500 seconds for the second time, at 65250 seconds for the third time and so on.
Important Notes: 87 and 250 lcm
The below are the important notes to be remembered while solving the lcm of 87 and 250:
- The common prime factors and the remaining prime factors of 87 and 250 should be multiplied to find the least common multiple of 87 and 250, when solving lcm by using prime factors method.
- The results of lcm of 87 and 250, and the lcm of 250 and 87 are identical, it means the order of given numbers in the lcm calculation doesn't affect the results.
How-to: What is the LCM of 87 and 250?
The below solved example with step by step work shows how to find what is the lcm of 87 and 250 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 87 and 250?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 87
B = 250
What to be found:
find the lcm of 87 and 250
step 2 Find the prime factors of 87 and 250:
Prime factors of 87 = 3 x 29
Prime factors of 250 = 2 x 5 x 5 x 5
step 3Identify the repeated and non-repeated prime factors of 87 and 250:
Since there is no common factors between 87 and 250, multiplying the given numbers directly provides the LCM of
87 and 250.
= 87 x 250
= 21750
lcm(87 and 250) = 21750
Hence,
lcm of 87 and 250 is 21750
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 87 and 250.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 87 and 250
What to be found:
lcm (87, 250) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
87 and 250
step 3 Choose the divisor which divides each or most of the given integers (87 and 250), divide each integers separately and write down the quotient in the next line right under the respective integers. Bring down the integer to the next line if any integer in 87 and 250 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 87 | 250 |
| 3 | 87 | 125 |
| 5 | 29 | 125 |
| 5 | 29 | 25 |
| 5 | 29 | 5 |
| 29 | 29 | 1 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 87 and 250:
= 2 x 3 x 5 x 5 x 5 x 29
= 21750
LCM(87, 250) = 21750
The LCM of two numbers 87 and 250 is 21750