LCM of 40 and 235
1880 is the LCM of 40 and 235. 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 235, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 40 and 235?
lcm (40 235) = (?)
40 => 2 x 2 x 2 x 5
235 => 5 x 47
= 5 x 2 x 2 x 2 x 47
= 1880
lcm (40 and 235) = 1880
1880 is the LCM of 40 and 235.
where,
40 is a positive integer,
235 is a positive integer,
1880 is the LCM of 40 and 235,
{5} in {2 x 2 x 2 x 5, 5 x 47} is the common factors of 40 and 235,
{2 x 2 x 2 x 47} in {2 x 2 x 2 x 5, 5 x 47} are the uncommon factors of 40 and 235.
Use in Mathematics: LCM of 40 and 235
The below are some of the mathematical applications where lcm of 40 and 235 can be used:
- to find the least number which is exactly divisible by 40 and 235.
- to find the common denominator for two fractions having 40 and 235 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 40 and 235 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 235 seconds repeatedly. The answer is that all bells A and B toll together at 1880 seconds for the first time, at 3760 seconds for the second time, at 5640 seconds for the third time and so on.
Important Notes: 40 and 235 lcm
The below are the important notes to be remembered while solving the lcm of 40 and 235:
- The common prime factors and the remaining prime factors of 40 and 235 should be multiplied to find the least common multiple of 40 and 235, when solving lcm by using prime factors method.
- The results of lcm of 40 and 235, and the lcm of 235 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 235?
The below solved example with step by step work shows how to find what is the lcm of 40 and 235 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 40 and 235?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 40
B = 235
What to be found:
find the lcm of 40 and 235
step 2 Find the prime factors of 40 and 235:
Prime factors of 40 = 2 x 2 x 2 x 5
Prime factors of 235 = 5 x 47
step 3 Identify the repeated and non-repeated prime factors of 40 and 235:
{5} is the most repeated factor and {2 x 2 x 2 x 47} are the non-repeated factors of 40 and 235.
step 4 Find the product of repeated and non-repeated prime factors of 40 and 235:
= 5 x 2 x 2 x 2 x 47
= 1880
lcm(40 and 235) = 1880
Hence,
lcm of 40 and 235 is 1880
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 40 and 235.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 40 and 235
What to be found:
lcm (40, 235) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
40 and 235
step 3 Choose the divisor which divides each or most of the given integers (40 and 235), 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 235 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 40 | 235 |
| 2 | 20 | 235 |
| 2 | 10 | 235 |
| 5 | 5 | 235 |
| 47 | 1 | 47 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 40 and 235:
= 2 x 2 x 2 x 5 x 47
= 1880
LCM(40, 235) = 1880
The LCM of two numbers 40 and 235 is 1880