LCM of 7 and 306
2142 is the LCM of 7 and 306. 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 306, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 7 and 306?
lcm (7 306) = (?)
7 => 7
306 => 2 x 3 x 3 x 17
= 7 x 2 x 3 x 3 x 17
= 2142
lcm (7 and 306) = 2142
2142 is the LCM of 7 and 306.
where,
7 is a positive integer,
306 is a positive integer,
2142 is the LCM of 7 and 306,
There is no common factors of 7 and 306 in {7, 2 x 3 x 3 x 17},
{7 x 2 x 3 x 3 x 17} in {7, 2 x 3 x 3 x 17} are the uncommon factors of 7 and 306.
Use in Mathematics: LCM of 7 and 306
The below are some of the mathematical applications where lcm of 7 and 306 can be used:
- to find the least number which is exactly divisible by 7 and 306.
- to find the common denominator for two fractions having 7 and 306 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 7 and 306 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 306 seconds repeatedly. The answer is that all bells A and B toll together at 2142 seconds for the first time, at 4284 seconds for the second time, at 6426 seconds for the third time and so on.
Important Notes: 7 and 306 lcm
The below are the important notes to be remembered while solving the lcm of 7 and 306:
- The common prime factors and the remaining prime factors of 7 and 306 should be multiplied to find the least common multiple of 7 and 306, when solving lcm by using prime factors method.
- The results of lcm of 7 and 306, and the lcm of 306 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 306?
The below solved example with step by step work shows how to find what is the lcm of 7 and 306 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 7 and 306?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 7
B = 306
What to be found:
find the lcm of 7 and 306
step 2 Find the prime factors of 7 and 306:
Prime factors of 7 = 7
Prime factors of 306 = 2 x 3 x 3 x 17
step 3Identify the repeated and non-repeated prime factors of 7 and 306:
Since there is no common factors between 7 and 306, multiplying the given numbers directly provides the LCM of
7 and 306.
= 7 x 306
= 2142
lcm(7 and 306) = 2142
Hence,
lcm of 7 and 306 is 2142
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 7 and 306.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 7 and 306
What to be found:
lcm (7, 306) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
7 and 306
step 3 Choose the divisor which divides each or most of the given integers (7 and 306), 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 306 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 7 | 306 |
| 3 | 7 | 153 |
| 3 | 7 | 51 |
| 7 | 7 | 17 |
| 17 | 1 | 17 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 7 and 306:
= 2 x 3 x 3 x 7 x 17
= 2142
LCM(7, 306) = 2142
The LCM of two numbers 7 and 306 is 2142