LCM of 11, 15 and 26
4290 is the LCM of 11, 15 and 26. 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 11, 15 and 26, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 11, 15 and 26?
lcm (11 15 26) = (?)
11 => 11
15 => 3 x 5
26 => 2 x 13
= 11 x 3 x 5 x 2 x 13
= 4290
lcm (11, 15 and 26) = 4290
The LCM of 11, 15 and 26 is 4290
where,
11 is a positive integer,
15 is a positive integer,
4290 is the LCM of 11, 15 and 26,
in {11, 3 x 5, 2 x 13} there is no repeated factors of 11, 15 and 26,
{11, 3, 5, 2, 13} in {11, 3 x 5, 2 x 13} are the the other remaining factors of 11, 15 and 26.
Use in Mathematics: LCM of 11, 15 and 26
The below are some of the mathematical applications where lcm of 11, 15 and 26 can be used:
- to find the least number which is exactly divisible by 11, 15 and 26.
- to find the common denominators for the fractions having 11, 15 and 26 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 11, 15 and 26 helps to find the exact time when three similar and recurring 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 all the bells A, B and C toll together, if bell A tolls at 11 seconds, B tolls at 15 seconds and C tolls at 26 seconds repeatedly. The answer is that all bells A, B and C toll together at 4290 seconds for the first time, at 8580 seconds for the second time, at 12870 seconds for the third time and so on.
Important Notes: 11, 15 and 26 lcm
The below are the important notes to be remembered while solving the lcm of 11, 15 and 26:
- The repeated and non-repeated prime factors of 11, 15 and 26 should be multiplied to find the least common multiple of 11, 15 and 26, when solving lcm by using prime factors method.
- The results of lcm of 11, 15 and 26 is identical even if we change the order of given numbers in the lcm calculation, it means the order of given numbers in the lcm calculation doesn't affect the results.
How-to: What is LCM of 11, 15 and 26?
The below solved example with step by step work shows how to find what is the lcm of 11, 15 and 26 by using either prime factors method and special division method.
Solved example using prime factors method:
What is LCM of 11, 15 and 26?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 11
B = 15
C = 26
What to be found:
Find lcm of 11, 15 and 26
step 2 Find the prime factors of 11, 15 and 26:
Prime factors of 11 = 11
Prime factors of 15 = 3 x 5
Prime factors of 26 = 2 x 13
step 3Identify the repeated and non-repeated prime factors of 11, 15 and 26:
Since there is no common factors between 11, 15 and 26, multiplying the given numbers directly provides the LCM of
11, 15 and 26.
= 11 x 15 x 26
= 4290
LCM(11, 15 and 26) = 4290
Hence,
The Least Common Multiple of 11, 15 and 26 is 4290
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 11, 15 and 26.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 11, 15 and 26
What to be found:
lcm (11, 15, 26) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
11, 15 and 26
step 3 Choose the divisor which divides each or most of the given integers (11, 15 and 26), 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 11, 15 and 26 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 11 | 15 | 26 |
| 3 | 11 | 15 | 13 |
| 5 | 11 | 5 | 13 |
| 11 | 11 | 1 | 13 |
| 13 | 1 | 1 | 13 |
| 1 | 1 | 1 |
step 4 Multiply the divisors to find the lcm of 11, 15 and 26:
= 2 x 3 x 5 x 11 x 13
= 4290
LCM(11, 15, 26) = 4290
The LCM of three numbers 11, 15 and 26 is 4290