64 and 124 LCM
LCM of 64 and 124 is equal to 1984. The comprehensive work provides more insight of how to find what is the lcm of 64 and 124 by using prime factors and special division methods, and the example use case of mathematics and real world problems.
what is the lcm of 64 and 124?
lcm (64 124) = (?)
64 => 2 x 2 x 2 x 2 x 2 x 2
124 => 2 x 2 x 31
= 2 x 2 x 2 x 2 x 2 x 2 x 31
= 1984
lcm (64 and 124) = 1984
1984 is the lcm of 64 and 124.
where,
64 is a positive integer,
124 is a positive integer,
1984 is the lcm of 64 and 124,
{2 x 2} in {2 x 2 x 2 x 2 x 2 x 2, 2 x 2 x 31} are the common factors of 64 and 124,
{2 x 2 x 2 x 2 x 31} in {2 x 2 x 2 x 2 x 2 x 2, 2 x 2 x 31} are the uncommon factors of 64 and 124.
Use in Mathematics: LCM of 64 and 124
The below are some of the mathematical applications where lcm of 64 and 124 can be used:
- to find the least number which is exactly divisible by 64 and 124.
- to find the common denominator for two fractions having 64 and 124 as denominators in the unlike fractions addition or subtraction.
In the context of lcm real world problems, the lcm of 64 and 124 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 64 seconds and bell B tolls at 124 seconds repeatedly. The answer is that all bells A and B toll together at 1984 seconds for the first time, at 3968 seconds for the second time, at 5952 seconds for the third time and so on.
Important Notes: 64 and 124 lcm
The below are the important notes to be remembered while solving the lcm of 64 and 124:
- The common prime factors and the remaining prime factors of 64 and 124 should be multiplied to find the least common multiple of 64 and 124, when solving lcm by using prime factors method.
- The results of lcm of 64 and 124, and the lcm of 124 and 64 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 64 and 124?
Solved example using prime factors method:
What is the LCM of 64 and 124?
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
A = 64
B = 124
What to be found:
find the lcm of 64 and 124
step 2 Find the prime factors of 64 and 124:
Prime factors of 64 = 2 x 2 x 2 x 2 x 2 x 2
Prime factors of 124 = 2 x 2 x 31
step 3 Identify the repeated and non-repeated prime factors of 64 and 124:
{2, 2} are the most repeated factors and {2 x 2 x 2 x 2 x 31} are the non-repeated factors of 64 and 124.
step 4 Find the product of repeated and non-repeated prime factors of 64 and 124:
= 2 x 2 x 2 x 2 x 2 x 2 x 31
= 1984
lcm(64 and 124) = 1984
Hence,
lcm of 64 and 124 is 1984
This special division method is the easiest way to understand the entire calculation of what is the lcm of 64 and 124.
step 1 Address the input parameters, values and observe what to be found:
Input parameters and values:
Integers: 64 and 124
What to be found:
lcm (64, 124) = ?
step 2 Arrange the given integers in the horizontal form with space or comma separated format:
64 and 124
step 3 Choose the divisor which divides each or most of the given integers (64 and 124), 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 64 and 124 is not divisible by the selected divisor; repeat the same process until all the integers are brought to 1 as like below:
| 2 | 64 | 124 |
| 2 | 32 | 62 |
| 2 | 16 | 31 |
| 2 | 8 | 31 |
| 2 | 4 | 31 |
| 2 | 2 | 31 |
| 31 | 1 | 31 |
| 1 | 1 |
step 4 Multiply the divisors to find the lcm of 64 and 124:
= 2 x 2 x 2 x 2 x 2 x 2 x 31
= 1984
LCM(64, 124) = 1984
The least common multiple for two numbers 64 and 124 is 1984