LCM of 117 and 215
25155 is the LCM of 117 and 215. 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 117 and 215, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 117 and 215?
lcm (117 215) = (?)
117 => 3 x 3 x 13
215 => 5 x 43
= 3 x 3 x 13 x 5 x 43
= 25155
lcm (117 and 215) = 25155
25155 is the LCM of 117 and 215.
where,
117 is a positive integer,
215 is a positive integer,
25155 is the LCM of 117 and 215,
There is no common factors of 117 and 215 in {3 x 3 x 13, 5 x 43},
{3 x 3 x 13 x 5 x 43} in {3 x 3 x 13, 5 x 43} are the uncommon factors of 117 and 215.
Use in Mathematics: LCM of 117 and 215
The below are some of the mathematical applications where lcm of 117 and 215 can be used:
- to find the least number which is exactly divisible by 117 and 215.
- to find the common denominator for two fractions having 117 and 215 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 117 and 215 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 117 seconds and bell B tolls at 215 seconds repeatedly. The answer is that all bells A and B toll together at 25155 seconds for the first time, at 50310 seconds for the second time, at 75465 seconds for the third time and so on.
Important Notes: 117 and 215 lcm
The below are the important notes to be remembered while solving the lcm of 117 and 215:
- The common prime factors and the remaining prime factors of 117 and 215 should be multiplied to find the least common multiple of 117 and 215, when solving lcm by using prime factors method.
- The results of lcm of 117 and 215, and the lcm of 215 and 117 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 117 and 215?
The below solved example with step by step work shows how to find what is the lcm of 117 and 215 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 117 and 215?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 117
B = 215
What to be found:
find the lcm of 117 and 215
step 2 Find the prime factors of 117 and 215:
Prime factors of 117 = 3 x 3 x 13
Prime factors of 215 = 5 x 43
step 3Identify the repeated and non-repeated prime factors of 117 and 215:
Since there is no common factors between 117 and 215, multiplying the given numbers directly provides the LCM of
117 and 215.
= 117 x 215
= 25155
lcm(117 and 215) = 25155
Hence,
lcm of 117 and 215 is 25155
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 117 and 215.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 117 and 215
What to be found:
lcm (117, 215) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
117 and 215
step 3 Choose the divisor which divides each or most of the given integers (117 and 215), 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 117 and 215 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 3 | 117 | 215 |
| 3 | 39 | 215 |
| 5 | 13 | 215 |
| 13 | 13 | 43 |
| 43 | 1 | 43 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 117 and 215:
= 3 x 3 x 5 x 13 x 43
= 25155
LCM(117, 215) = 25155
The LCM of two numbers 117 and 215 is 25155