Question

How to know if a number is a perfect square??

Answer 1

Hey,


A perfect square always ends with digit 1, 4, 25, 6,  9 and 00.

If a number has only 5 and some other numbers other than 2, i.e., it has 35 as the last two digits. Then it is not a perfect square.
Similarly, a perfect square always ends with even number of zeroes. If a number has 3 or 5 zeroes, then we cab say that it is not a perfect square.



#Rehan Ahmad XLX
#BrainlyStar

Answer 2

you can never predict a number only by seeing it that it is a perfect square number or not.
so some of the ways of finding perfect square numbers are.
the perfect square number never ends with 0,2,3, and 7
if you find any other number ending with 0,2,3 and 7 you can simply use the long division method to find the square root..