LCM of 7 and 192
1344 is the LCM of 7 and 192. 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 7 and 192, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 7 and 192?
lcm (7 192) = (?)
7 => 7
192 => 2 x 2 x 2 x 2 x 2 x 2 x 3
= 7 x 2 x 2 x 2 x 2 x 2 x 2 x 3
= 1344
lcm (7 and 192) = 1344
1344 is the LCM of 7 and 192.
where,
7 is a positive integer,
192 is a positive integer,
1344 is the LCM of 7 and 192,
There is no common factors of 7 and 192 in {7, 2 x 2 x 2 x 2 x 2 x 2 x 3},
{7 x 2 x 2 x 2 x 2 x 2 x 2 x 3} in {7, 2 x 2 x 2 x 2 x 2 x 2 x 3} are the uncommon factors of 7 and 192.
Use in Mathematics: LCM of 7 and 192
The below are some of the mathematical applications where lcm of 7 and 192 can be used:
- to find the least number which is exactly divisible by 7 and 192.
- to find the common denominator for two fractions having 7 and 192 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 7 and 192 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 7 seconds and bell B tolls at 192 seconds repeatedly. The answer is that all bells A and B toll together at 1344 seconds for the first time, at 2688 seconds for the second time, at 4032 seconds for the third time and so on.
Important Notes: 7 and 192 lcm
The below are the important notes to be remembered while solving the lcm of 7 and 192:
- The common prime factors and the remaining prime factors of 7 and 192 should be multiplied to find the least common multiple of 7 and 192, when solving lcm by using prime factors method.
- The results of lcm of 7 and 192, and the lcm of 192 and 7 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 7 and 192?
The below solved example with step by step work shows how to find what is the lcm of 7 and 192 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 7 and 192?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 7
B = 192
What to be found:
find the lcm of 7 and 192
step 2 Find the prime factors of 7 and 192:
Prime factors of 7 = 7
Prime factors of 192 = 2 x 2 x 2 x 2 x 2 x 2 x 3
step 3Identify the repeated and non-repeated prime factors of 7 and 192:
Since there is no common factors between 7 and 192, multiplying the given numbers directly provides the LCM of
7 and 192.
= 7 x 192
= 1344
lcm(7 and 192) = 1344
Hence,
lcm of 7 and 192 is 1344
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 7 and 192.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 7 and 192
What to be found:
lcm (7, 192) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
7 and 192
step 3 Choose the divisor which divides each or most of the given integers (7 and 192), 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 7 and 192 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 7 | 192 |
| 2 | 7 | 96 |
| 2 | 7 | 48 |
| 2 | 7 | 24 |
| 2 | 7 | 12 |
| 2 | 7 | 6 |
| 3 | 7 | 3 |
| 7 | 7 | 1 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 7 and 192:
= 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7
= 1344
LCM(7, 192) = 1344
The LCM of two numbers 7 and 192 is 1344