Advertisements
Advertisements
प्रश्न
Write five numbers for which you cannot decide whether they are squares.
उत्तर
A number whose unit digit is 2, 3, 7 or 8 cannot be a perfect square.
On the other hand, a number whose unit digit is 1, 4, 5, 6, 9 or 0 might be a perfect square (although we will have to verify whether it is a perfect square or not).
Applying the above two conditions, we cannot quickly decide whether the following numbers are squares of any numbers:
1111, 1444, 1555, 1666, 1999
APPEARS IN
संबंधित प्रश्न
Find the square root of the following number by the prime factorisation method.
9604
Find the square root of the following number by the prime factorisation method.
8100
For the following number, find the smallest whole number by which it should be divided so as to get a perfect square number. Also find the square root of the square number so obtained.
2645
For the following number, find the smallest whole number by which it should be divided so as to get a perfect square number. Also find the square root of the square number so obtained.
1620
Find the smallest number by which the given number must bew multiplied so that the product is a perfect square:
12150
Find the smallest number by which the given number must be divided so that the resulting number is a perfect square:
2904
By just examining the units digit, can you tell which of the following cannot be whole square?
1026
Is 90 a perfect square?
If `root(3)(1906624) xx sqrt(x)` = 3100, find x
The least number by which 125 be multiplied to make it a perfect square is ______.
