LCM of 81 and 229
18549 is the LCM of 81 and 229. 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 81 and 229, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 81 and 229?
lcm (81 229) = (?)
81 => 3 x 3 x 3 x 3
229 => 229
= 3 x 3 x 3 x 3 x 229
= 18549
lcm (81 and 229) = 18549
18549 is the LCM of 81 and 229.
where,
81 is a positive integer,
229 is a positive integer,
18549 is the LCM of 81 and 229,
There is no common factors of 81 and 229 in {3 x 3 x 3 x 3, 229},
{3 x 3 x 3 x 3 x 229} in {3 x 3 x 3 x 3, 229} are the uncommon factors of 81 and 229.
Use in Mathematics: LCM of 81 and 229
The below are some of the mathematical applications where lcm of 81 and 229 can be used:
- to find the least number which is exactly divisible by 81 and 229.
- to find the common denominator for two fractions having 81 and 229 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 81 and 229 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 81 seconds and bell B tolls at 229 seconds repeatedly. The answer is that all bells A and B toll together at 18549 seconds for the first time, at 37098 seconds for the second time, at 55647 seconds for the third time and so on.
Important Notes: 81 and 229 lcm
The below are the important notes to be remembered while solving the lcm of 81 and 229:
- The common prime factors and the remaining prime factors of 81 and 229 should be multiplied to find the least common multiple of 81 and 229, when solving lcm by using prime factors method.
- The results of lcm of 81 and 229, and the lcm of 229 and 81 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 81 and 229?
The below solved example with step by step work shows how to find what is the lcm of 81 and 229 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 81 and 229?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 81
B = 229
What to be found:
find the lcm of 81 and 229
step 2 Find the prime factors of 81 and 229:
Prime factors of 81 = 3 x 3 x 3 x 3
Prime factors of 229 = 229
step 3Identify the repeated and non-repeated prime factors of 81 and 229:
Since there is no common factors between 81 and 229, multiplying the given numbers directly provides the LCM of
81 and 229.
= 81 x 229
= 18549
lcm(81 and 229) = 18549
Hence,
lcm of 81 and 229 is 18549
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 81 and 229.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 81 and 229
What to be found:
lcm (81, 229) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
81 and 229
step 3 Choose the divisor which divides each or most of the given integers (81 and 229), 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 81 and 229 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 3 | 81 | 229 |
| 3 | 27 | 229 |
| 3 | 9 | 229 |
| 3 | 3 | 229 |
| 229 | 1 | 229 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 81 and 229:
= 3 x 3 x 3 x 3 x 229
= 18549
LCM(81, 229) = 18549
The LCM of two numbers 81 and 229 is 18549