# 86 and 129 LCM LCM of 86 and 129 is equal to 258. The comprehensive work provides more insight of how to find what is the lcm of 86 and 129 by using prime factors and special division methods, and the example use case of mathematics and real world problems.

what is the lcm of 86 and 129?
lcm (86   129) = (?)
86 => 2 x 43
129 => 3 x 43

= 43 x 2 x 3
= 258
lcm (86 and 129) = 258
258 is the lcm of 86 and 129.

where,
86 is a positive integer,
129 is a positive integer,
258 is the lcm of 86 and 129,
{43} in {2 x 43, 3 x 43} is the common factors of 86 and 129,
{2 x 3} in {2 x 43, 3 x 43} are the uncommon factors of 86 and 129.

Use in Mathematics: LCM of 86 and 129
The below are some of the mathematical applications where lcm of 86 and 129 can be used:

1. to find the least number which is exactly divisible by 86 and 129.
2. to find the common denominator for two fractions having 86 and 129 as denominators in the unlike fractions addition or subtraction.
Use in Real-world Problems: 86 and 129 lcm
In the context of lcm real world problems, the lcm of 86 and 129 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 86 seconds and bell B tolls at 129 seconds repeatedly. The answer is that all bells A and B toll together at 258 seconds for the first time, at 516 seconds for the second time, at 774 seconds for the third time and so on.

Important Notes: 86 and 129 lcm
The below are the important notes to be remembered while solving the lcm of 86 and 129:
1. The common prime factors and the remaining prime factors of 86 and 129 should be multiplied to find the least common multiple of 86 and 129, when solving lcm by using prime factors method.
2. The results of lcm of 86 and 129, and the lcm of 129 and 86 are identical, it means the order of given numbers in the lcm calculation doesn't affect the results.
For values other than 86 and 129, use this below tool:

## How-to: What is the LCM of 86 and 129?

The below solved example with step by step work shows how to find what is the lcm of 86 and 129 by using prime factors method and division method.

Solved example using prime factors method:
What is the LCM of 86 and 129?

step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 86
B = 129

What to be found:
find the lcm of 86 and 129

step 2 Find the prime factors of 86 and 129:
Prime factors of 86 = 2 x 43
Prime factors of 129 = 3 x 43

step 3 Identify the repeated and non-repeated prime factors of 86 and 129:
{43} is the most repeated factor and {2 x 3} are the non-repeated factors of 86 and 129.

step 4 Find the product of repeated and non-repeated prime factors of 86 and 129:
= 43 x 2 x 3
= 258
lcm(86 and 129) = 258

Hence,
lcm of 86 and 129 is 258

Solved example using special division method:
This special division method is the easiest way to understand the entire calculation of what is the lcm of 86 and 129.

step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 86 and 129

What to be found:
lcm (86, 129) = ?

step 2 Arrange the given integers in the horizontal form with space or comma separated format:
86 and 129

step 3 Choose the divisor which divides each or most of the given integers (86 and 129), 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 86 and 129 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:

 2 86 129 3 43 129 43 43 43 1 1

step 4 Multiply the divisors to find the lcm of 86 and 129:
= 2 x 3 x 43
= 258
LCM(86, 129) = 258

The least common multiple for two numbers 86 and 129 is 258 