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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
Write five numbers which you cannot decide whether they are square just by looking at the unit's digit.
Write true (T) or false (F) for the following statement.
The number of digits in a square number is even.
Write true (T) or false (F) for the following statement.
The product of two square numbers is a square number.
Find the square root the following by prime factorization.
196
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A square board has an area of 144 square units. How long is each side of the board?
Using prime factorisation, find which of the following are perfect squares.
729
Using prime factorisation, find the square roots of 11025
Is 176 a perfect square? If not, find the smallest number by which it should be multiplied to get a perfect square.
Find the smallest square number divisible by each one of the numbers 8, 9 and 10.
