LCM of 129 and 166
21414 is the LCM of 129 and 166. 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 129 and 166, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 129 and 166?
lcm (129 166) = (?)
129 => 3 x 43
166 => 2 x 83
= 3 x 43 x 2 x 83
= 21414
lcm (129 and 166) = 21414
21414 is the LCM of 129 and 166.
where,
129 is a positive integer,
166 is a positive integer,
21414 is the LCM of 129 and 166,
There is no common factors of 129 and 166 in {3 x 43, 2 x 83},
{3 x 43 x 2 x 83} in {3 x 43, 2 x 83} are the uncommon factors of 129 and 166.
Use in Mathematics: LCM of 129 and 166
The below are some of the mathematical applications where lcm of 129 and 166 can be used:
- to find the least number which is exactly divisible by 129 and 166.
- to find the common denominator for two fractions having 129 and 166 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 129 and 166 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 129 seconds and bell B tolls at 166 seconds repeatedly. The answer is that all bells A and B toll together at 21414 seconds for the first time, at 42828 seconds for the second time, at 64242 seconds for the third time and so on.
Important Notes: 129 and 166 lcm
The below are the important notes to be remembered while solving the lcm of 129 and 166:
- The common prime factors and the remaining prime factors of 129 and 166 should be multiplied to find the least common multiple of 129 and 166, when solving lcm by using prime factors method.
- The results of lcm of 129 and 166, and the lcm of 166 and 129 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 129 and 166?
The below solved example with step by step work shows how to find what is the lcm of 129 and 166 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 129 and 166?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 129
B = 166
What to be found:
find the lcm of 129 and 166
step 2 Find the prime factors of 129 and 166:
Prime factors of 129 = 3 x 43
Prime factors of 166 = 2 x 83
step 3Identify the repeated and non-repeated prime factors of 129 and 166:
Since there is no common factors between 129 and 166, multiplying the given numbers directly provides the LCM of
129 and 166.
= 129 x 166
= 21414
lcm(129 and 166) = 21414
Hence,
lcm of 129 and 166 is 21414
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 129 and 166.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 129 and 166
What to be found:
lcm (129, 166) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
129 and 166
step 3 Choose the divisor which divides each or most of the given integers (129 and 166), 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 129 and 166 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 129 | 166 |
| 3 | 129 | 83 |
| 43 | 43 | 83 |
| 83 | 1 | 83 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 129 and 166:
= 2 x 3 x 43 x 83
= 21414
LCM(129, 166) = 21414
The LCM of two numbers 129 and 166 is 21414