What is the LCM of 7 and 28?
A number has to be the smallest and at the same time perfectly divisible by the given numbers to be considered as their LCM
Answer: LCM of 7 and 28 is 28
The least common multiple is the smallest number which is exactly divisible by both the given numbers.
Methods to Find LCM of 7 and 28
LCM of 7 and 28 by Listing Method
- Write the multiples of 7 and 28.
- Find the common multiples of both.
- The least among the common multiples is the LCM of 7 and 28.
LCM of 7 and 28 by Common Division Method
Divide the numbers simultaneously with prime numbers and stop once we don't have a prime number to divide the given numbers.
Irrespective of the method, the solution to our question LCM of 7 and 28 is the same.