LCM of 49 and 71
3479 is the LCM of 49 and 71. 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 49 and 71, provided along with the use cases of mathematics and real-world problems.
what is the lcm of 49 and 71?
lcm (49 71) = (?)
49 => 7 x 7
71 => 71
= 7 x 7 x 71
= 3479
lcm (49 and 71) = 3479
3479 is the LCM of 49 and 71.
where,
49 is a positive integer,
71 is a positive integer,
3479 is the LCM of 49 and 71,
There is no common factors of 49 and 71 in {7 x 7, 71},
{7 x 7 x 71} in {7 x 7, 71} are the uncommon factors of 49 and 71.
Use in Mathematics: LCM of 49 and 71
The below are some of the mathematical applications where lcm of 49 and 71 can be used:
- to find the least number which is exactly divisible by 49 and 71.
- to find the common denominator for two fractions having 49 and 71 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 49 and 71 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 49 seconds and bell B tolls at 71 seconds repeatedly. The answer is that all bells A and B toll together at 3479 seconds for the first time, at 6958 seconds for the second time, at 10437 seconds for the third time and so on.
Important Notes: 49 and 71 lcm
The below are the important notes to be remembered while solving the lcm of 49 and 71:
- The common prime factors and the remaining prime factors of 49 and 71 should be multiplied to find the least common multiple of 49 and 71, when solving lcm by using prime factors method.
- The results of lcm of 49 and 71, and the lcm of 71 and 49 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 49 and 71?
The below solved example with step by step work shows how to find what is the lcm of 49 and 71 by using prime factors method and division method.
Solved example using prime factors method:
What is the LCM of 49 and 71?
step 1
Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 49
B = 71
What to be found:
find the lcm of 49 and 71
step 2 Find the prime factors of 49 and 71:
Prime factors of 49 = 7 x 7
Prime factors of 71 = 71
step 3Identify the repeated and non-repeated prime factors of 49 and 71:
Since there is no common factors between 49 and 71, multiplying the given numbers directly provides the LCM of
49 and 71.
= 49 x 71
= 3479
lcm(49 and 71) = 3479
Hence,
lcm of 49 and 71 is 3479
This special division method is one of the easiest ways to understand the entire calculation to find the LCM of 49 and 71.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 49 and 71
What to be found:
lcm (49, 71) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
49 and 71
step 3 Choose the divisor which divides each or most of the given integers (49 and 71), 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 49 and 71 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 7 | 49 | 71 |
| 7 | 7 | 71 |
| 71 | 1 | 71 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 49 and 71:
= 7 x 7 x 71
= 3479
LCM(49, 71) = 3479
The LCM of two numbers 49 and 71 is 3479