LCM of 28 and 283
7924 is the LCM of 28 and 283. 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 28 and 283, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 28 and 283?
lcm (28 283) = (?)
28 => 2 x 2 x 7
283 => 283
= 2 x 2 x 7 x 283
= 7924
lcm (28 and 283) = 7924
7924 is the LCM of 28 and 283.
where,
28 is a positive integer,
283 is a positive integer,
7924 is the LCM of 28 and 283,
There is no common factors of 28 and 283 in {2 x 2 x 7, 283},
{2 x 2 x 7 x 283} in {2 x 2 x 7, 283} are the uncommon factors of 28 and 283.
Use in Mathematics: LCM of 28 and 283
The below are some of the mathematical applications where lcm of 28 and 283 can be used:
- to find the least number which is exactly divisible by 28 and 283.
- to find the common denominator for two fractions having 28 and 283 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 28 and 283 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 28 seconds and bell B tolls at 283 seconds repeatedly. The answer is that all bells A and B toll together at 7924 seconds for the first time, at 15848 seconds for the second time, at 23772 seconds for the third time and so on.
Important Notes: 28 and 283 lcm
The below are the important notes to be remembered while solving the lcm of 28 and 283:
- The common prime factors and the remaining prime factors of 28 and 283 should be multiplied to find the least common multiple of 28 and 283, when solving lcm by using prime factors method.
- The results of lcm of 28 and 283, and the lcm of 283 and 28 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 28 and 283?
The below solved example with step by step work shows how to find what is the lcm of 28 and 283 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 28 and 283?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 28
B = 283
What to be found:
find the lcm of 28 and 283
step 2 Find the prime factors of 28 and 283:
Prime factors of 28 = 2 x 2 x 7
Prime factors of 283 = 283
step 3Identify the repeated and non-repeated prime factors of 28 and 283:
Since there is no common factors between 28 and 283, multiplying the given numbers directly provides the LCM of
28 and 283.
= 28 x 283
= 7924
lcm(28 and 283) = 7924
Hence,
lcm of 28 and 283 is 7924
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 28 and 283.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 28 and 283
What to be found:
lcm (28, 283) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
28 and 283
step 3 Choose the divisor which divides each or most of the given integers (28 and 283), 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 28 and 283 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 28 | 283 |
| 2 | 14 | 283 |
| 7 | 7 | 283 |
| 283 | 1 | 283 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 28 and 283:
= 2 x 2 x 7 x 283
= 7924
LCM(28, 283) = 7924
The LCM of two numbers 28 and 283 is 7924