Find the least perfect square which is exactly divisible by each of the numbers 5, 18, 25 and 27
Answers
Answer:
In mathematics, a rational number is the quotient of two integers where the divisor is not zero. In other words, a fraction b a where a and b are both integers and b≠0. Since the values and operations of a rational number can be defined independently of computer terminology, it is an ADT.
Answer:
The least perfect square number should be divisible by 5,18,25and27.
For any number to be divisible by 5,18,25and27, that number will have to be greater than or equal to 27.
Also for the number to be divisible by 25 ,that number must have ‘00' and 25 at its unit place and any perfect square will always contain an even number of zeros at its end so that on reverse process ,we can find its perfect square root.
As we have to find the least possible perfect square number ,let's start with those numbers which contain 2 zeros at their ends and which are perfect squares.
The possible numbers are 100,400,900,1600,2500,3600,4900,6400,8100,10000……..and so on.
On doing an easy inspection of the above numbers , we can see that 3600 is the least possible perfect square divisible by 5,18,25and 27.