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प्रश्न
Write five numbers for which you cannot decide whether they are squares.
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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
संबंधित प्रश्न
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 square number that is divisible by each of the numbers 4, 9, and 10.
Find the smallest number by which the given number must bew multiplied so that the product is a perfect square:
12150
Write true (T) or false (F) for the following statement .
There is no square number between 50 and 60.
Find the square rootthe following by prime factorization.
11664
Find the smallest number by which 180 must be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square so obtained.
Find the smallest number by which 147 must be multiplied so that it becomes a perfect square. Also, find the square root of the number so obtained.
Find the square root of 6400.
Examine if the following is a perfect square
190
Examine if the following is a perfect square.
841
