Question : The least number that should be subtracted from 63520 to make the result a perfect square is:

Option 1: 30

Option 2: 24

Option 3: 14

Option 4: 16

Question : Let $x$ be the least number which when subtracted from 10424 gives a perfect square number. What is the least number by which $x$ should be multiplied to get a perfect square?

Option 1: 3

Option 2: 2

Option 3: 6

Option 4: 5

Question : What is the smallest number by which 625 must be divided so that the quotient is a perfect cube?

Option 1: 25

Option 2: 5

Option 3: 2

Option 4: 3

Question : Find the least number divisible by 2, 3, 5, 6, 9, and 18 which is a perfect square.

Option 1: 900

Option 2: 400

Option 3: 144

Option 4: 3600

Question : The least six-digit number, which is a perfect square, is:

Option 1: 100489

Option 2: 10000

Option 3: 100256

Option 4: 100255