LCM of 43 and 117
5031 is the LCM of 43 and 117. 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 43 and 117, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 43 and 117?
lcm (43 117) = (?)
43 => 43
117 => 3 x 3 x 13
= 43 x 3 x 3 x 13
= 5031
lcm (43 and 117) = 5031
5031 is the LCM of 43 and 117.
where,
43 is a positive integer,
117 is a positive integer,
5031 is the LCM of 43 and 117,
There is no common factors of 43 and 117 in {43, 3 x 3 x 13},
{43 x 3 x 3 x 13} in {43, 3 x 3 x 13} are the uncommon factors of 43 and 117.
Use in Mathematics: LCM of 43 and 117
The below are some of the mathematical applications where lcm of 43 and 117 can be used:
- to find the least number which is exactly divisible by 43 and 117.
- to find the common denominator for two fractions having 43 and 117 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 43 and 117 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 43 seconds and bell B tolls at 117 seconds repeatedly. The answer is that all bells A and B toll together at 5031 seconds for the first time, at 10062 seconds for the second time, at 15093 seconds for the third time and so on.
Important Notes: 43 and 117 lcm
The below are the important notes to be remembered while solving the lcm of 43 and 117:
- The common prime factors and the remaining prime factors of 43 and 117 should be multiplied to find the least common multiple of 43 and 117, when solving lcm by using prime factors method.
- The results of lcm of 43 and 117, and the lcm of 117 and 43 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 43 and 117?
The below solved example with step by step work shows how to find what is the lcm of 43 and 117 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 43 and 117?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 43
B = 117
What to be found:
find the lcm of 43 and 117
step 2 Find the prime factors of 43 and 117:
Prime factors of 43 = 43
Prime factors of 117 = 3 x 3 x 13
step 3Identify the repeated and non-repeated prime factors of 43 and 117:
Since there is no common factors between 43 and 117, multiplying the given numbers directly provides the LCM of
43 and 117.
= 43 x 117
= 5031
lcm(43 and 117) = 5031
Hence,
lcm of 43 and 117 is 5031
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 43 and 117.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 43 and 117
What to be found:
lcm (43, 117) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
43 and 117
step 3 Choose the divisor which divides each or most of the given integers (43 and 117), 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 43 and 117 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 3 | 43 | 117 |
| 3 | 43 | 39 |
| 13 | 43 | 13 |
| 43 | 43 | 1 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 43 and 117:
= 3 x 3 x 13 x 43
= 5031
LCM(43, 117) = 5031
The LCM of two numbers 43 and 117 is 5031