LCM of 261 and 322
84042 is the LCM of 261 and 322. 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 261 and 322, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 261 and 322?
lcm (261 322) = (?)
261 => 3 x 3 x 29
322 => 2 x 7 x 23
= 3 x 3 x 29 x 2 x 7 x 23
= 84042
lcm (261 and 322) = 84042
84042 is the LCM of 261 and 322.
where,
261 is a positive integer,
322 is a positive integer,
84042 is the LCM of 261 and 322,
There is no common factors of 261 and 322 in {3 x 3 x 29, 2 x 7 x 23},
{3 x 3 x 29 x 2 x 7 x 23} in {3 x 3 x 29, 2 x 7 x 23} are the uncommon factors of 261 and 322.
Use in Mathematics: LCM of 261 and 322
The below are some of the mathematical applications where lcm of 261 and 322 can be used:
- to find the least number which is exactly divisible by 261 and 322.
- to find the common denominator for two fractions having 261 and 322 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 261 and 322 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 261 seconds and bell B tolls at 322 seconds repeatedly. The answer is that all bells A and B toll together at 84042 seconds for the first time, at 168084 seconds for the second time, at 252126 seconds for the third time and so on.
Important Notes: 261 and 322 lcm
The below are the important notes to be remembered while solving the lcm of 261 and 322:
- The common prime factors and the remaining prime factors of 261 and 322 should be multiplied to find the least common multiple of 261 and 322, when solving lcm by using prime factors method.
- The results of lcm of 261 and 322, and the lcm of 322 and 261 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 261 and 322?
The below solved example with step by step work shows how to find what is the lcm of 261 and 322 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 261 and 322?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 261
B = 322
What to be found:
find the lcm of 261 and 322
step 2 Find the prime factors of 261 and 322:
Prime factors of 261 = 3 x 3 x 29
Prime factors of 322 = 2 x 7 x 23
step 3Identify the repeated and non-repeated prime factors of 261 and 322:
Since there is no common factors between 261 and 322, multiplying the given numbers directly provides the LCM of
261 and 322.
= 261 x 322
= 84042
lcm(261 and 322) = 84042
Hence,
lcm of 261 and 322 is 84042
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 261 and 322.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 261 and 322
What to be found:
lcm (261, 322) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
261 and 322
step 3 Choose the divisor which divides each or most of the given integers (261 and 322), 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 261 and 322 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 261 | 322 |
| 3 | 261 | 161 |
| 3 | 87 | 161 |
| 7 | 29 | 161 |
| 23 | 29 | 23 |
| 29 | 29 | 1 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 261 and 322:
= 2 x 3 x 3 x 7 x 23 x 29
= 84042
LCM(261, 322) = 84042
The LCM of two numbers 261 and 322 is 84042