LCM of 40 and 211
8440 is the LCM of 40 and 211. 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 40 and 211, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 40 and 211?
lcm (40 211) = (?)
40 => 2 x 2 x 2 x 5
211 => 211
= 2 x 2 x 2 x 5 x 211
= 8440
lcm (40 and 211) = 8440
8440 is the LCM of 40 and 211.
where,
40 is a positive integer,
211 is a positive integer,
8440 is the LCM of 40 and 211,
There is no common factors of 40 and 211 in {2 x 2 x 2 x 5, 211},
{2 x 2 x 2 x 5 x 211} in {2 x 2 x 2 x 5, 211} are the uncommon factors of 40 and 211.
Use in Mathematics: LCM of 40 and 211
The below are some of the mathematical applications where lcm of 40 and 211 can be used:
- to find the least number which is exactly divisible by 40 and 211.
- to find the common denominator for two fractions having 40 and 211 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 40 and 211 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 40 seconds and bell B tolls at 211 seconds repeatedly. The answer is that all bells A and B toll together at 8440 seconds for the first time, at 16880 seconds for the second time, at 25320 seconds for the third time and so on.
Important Notes: 40 and 211 lcm
The below are the important notes to be remembered while solving the lcm of 40 and 211:
- The common prime factors and the remaining prime factors of 40 and 211 should be multiplied to find the least common multiple of 40 and 211, when solving lcm by using prime factors method.
- The results of lcm of 40 and 211, and the lcm of 211 and 40 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 40 and 211?
The below solved example with step by step work shows how to find what is the lcm of 40 and 211 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 40 and 211?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 40
B = 211
What to be found:
find the lcm of 40 and 211
step 2 Find the prime factors of 40 and 211:
Prime factors of 40 = 2 x 2 x 2 x 5
Prime factors of 211 = 211
step 3Identify the repeated and non-repeated prime factors of 40 and 211:
Since there is no common factors between 40 and 211, multiplying the given numbers directly provides the LCM of
40 and 211.
= 40 x 211
= 8440
lcm(40 and 211) = 8440
Hence,
lcm of 40 and 211 is 8440
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 40 and 211.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 40 and 211
What to be found:
lcm (40, 211) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
40 and 211
step 3 Choose the divisor which divides each or most of the given integers (40 and 211), 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 40 and 211 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 40 | 211 |
| 2 | 20 | 211 |
| 2 | 10 | 211 |
| 5 | 5 | 211 |
| 211 | 1 | 211 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 40 and 211:
= 2 x 2 x 2 x 5 x 211
= 8440
LCM(40, 211) = 8440
The LCM of two numbers 40 and 211 is 8440