LCM of 47 and 80
3760 is the LCM of 47 and 80. 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 47 and 80, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 47 and 80?
lcm (47 80) = (?)
47 => 47
80 => 2 x 2 x 2 x 2 x 5
= 47 x 2 x 2 x 2 x 2 x 5
= 3760
lcm (47 and 80) = 3760
3760 is the LCM of 47 and 80.
where,
47 is a positive integer,
80 is a positive integer,
3760 is the LCM of 47 and 80,
There is no common factors of 47 and 80 in {47, 2 x 2 x 2 x 2 x 5},
{47 x 2 x 2 x 2 x 2 x 5} in {47, 2 x 2 x 2 x 2 x 5} are the uncommon factors of 47 and 80.
Use in Mathematics: LCM of 47 and 80
The below are some of the mathematical applications where lcm of 47 and 80 can be used:
- to find the least number which is exactly divisible by 47 and 80.
- to find the common denominator for two fractions having 47 and 80 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 47 and 80 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 47 seconds and bell B tolls at 80 seconds repeatedly. The answer is that all bells A and B toll together at 3760 seconds for the first time, at 7520 seconds for the second time, at 11280 seconds for the third time and so on.
Important Notes: 47 and 80 lcm
The below are the important notes to be remembered while solving the lcm of 47 and 80:
- The common prime factors and the remaining prime factors of 47 and 80 should be multiplied to find the least common multiple of 47 and 80, when solving lcm by using prime factors method.
- The results of lcm of 47 and 80, and the lcm of 80 and 47 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 47 and 80?
The below solved example with step by step work shows how to find what is the lcm of 47 and 80 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 47 and 80?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 47
B = 80
What to be found:
find the lcm of 47 and 80
step 2 Find the prime factors of 47 and 80:
Prime factors of 47 = 47
Prime factors of 80 = 2 x 2 x 2 x 2 x 5
step 3Identify the repeated and non-repeated prime factors of 47 and 80:
Since there is no common factors between 47 and 80, multiplying the given numbers directly provides the LCM of
47 and 80.
= 47 x 80
= 3760
lcm(47 and 80) = 3760
Hence,
lcm of 47 and 80 is 3760
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 47 and 80.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 47 and 80
What to be found:
lcm (47, 80) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
47 and 80
step 3 Choose the divisor which divides each or most of the given integers (47 and 80), 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 47 and 80 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 47 | 80 |
| 2 | 47 | 40 |
| 2 | 47 | 20 |
| 2 | 47 | 10 |
| 5 | 47 | 5 |
| 47 | 47 | 1 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 47 and 80:
= 2 x 2 x 2 x 2 x 5 x 47
= 3760
LCM(47, 80) = 3760
The LCM of two numbers 47 and 80 is 3760