87 and 116 LCM
LCM of 87 and 116 is equal to 348. The comprehensive work provides more insight of how to find what is the lcm of 87 and 116 by using prime factors and special division methods, and the example use case of mathematics and real world problems.
what is the lcm of 87 and 116?
lcm (87 116) = (?)
87 => 3 x 29
116 => 2 x 2 x 29
= 29 x 3 x 2 x 2
= 348
lcm (87 and 116) = 348
348 is the lcm of 87 and 116.
where,
87 is a positive integer,
116 is a positive integer,
348 is the lcm of 87 and 116,
{29} in {3 x 29, 2 x 2 x 29} is the common factors of 87 and 116,
{3 x 2 x 2} in {3 x 29, 2 x 2 x 29} are the uncommon factors of 87 and 116.
Use in Mathematics: LCM of 87 and 116
The below are some of the mathematical applications where lcm of 87 and 116 can be used:
- to find the least number which is exactly divisible by 87 and 116.
- to find the common denominator for two fractions having 87 and 116 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 87 and 116 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 116 seconds repeatedly. The answer is that all bells A and B toll together at 348 seconds for the first time, at 696 seconds for the second time, at 1044 seconds for the third time and so on.
Important Notes: 87 and 116 lcm
The below are the important notes to be remembered while solving the lcm of 87 and 116:
- The common prime factors and the remaining prime factors of 87 and 116 should be multiplied to find the least common multiple of 87 and 116, when solving lcm by using prime factors method.
- The results of lcm of 87 and 116, and the lcm of 116 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 116?
The below solved example with step by step work shows how to find what is the lcm of 87 and 116 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 87 and 116?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 87
B = 116
What to be found:
find the lcm of 87 and 116
step 2 Find the prime factors of 87 and 116:
Prime factors of 87 = 3 x 29
Prime factors of 116 = 2 x 2 x 29
step 3 Identify the repeated and non-repeated prime factors of 87 and 116:
{29} is the most repeated factor and {3 x 2 x 2} are the non-repeated factors of 87 and 116.
step 4 Find the product of repeated and non-repeated prime factors of 87 and 116:
= 29 x 3 x 2 x 2
= 348
lcm(87 and 116) = 348
Hence,
lcm of 87 and 116 is 348
This special division method is the easiest way to understand the entire calculation of what is the lcm of 87 and 116.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 87 and 116
What to be found:
lcm (87, 116) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
87 and 116
step 3 Choose the divisor which divides each or most of the given integers (87 and 116), 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 116 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 87 | 116 |
| 2 | 87 | 58 |
| 3 | 87 | 29 |
| 29 | 29 | 29 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 87 and 116:
= 2 x 2 x 3 x 29
= 348
LCM(87, 116) = 348
The least common multiple for two numbers 87 and 116 is 348