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प्रश्न
The following number are not perfect squares. Give reason.
1547
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उत्तर
A number ending with 2, 3, 7 or 8 cannot be a perfect square.
Its last digit is 7. Hence, 1547 cannot be a perfect square.
संबंधित प्रश्न
Show that each of the following numbers is a perfect square. Also, find the number whose square is the given number in each case:
4761
Which of the following numbers are perfect squares?
36
Which of the following numbers are perfect square?
79
By what number should each of the following numbers be multiplied to get a perfect square ? Also, find the number whose square is the new number.
8820
By what number should each of the following numbers be multiplied to get a perfect square ? Also, find the number whose square is the new number.
3675
By what numbers should each of the following be divided to get a perfect square ? Also, find the number whose square is the new number.
5103
The product of two perfect squares is a perfect square.
Write the first five square numbers.
Find the side of a square whose area is equal to the area of a rectangle with sides 6.4 m and 2.5 m.
A three digit perfect square is such that if it is viewed upside down, the number seen is also a perfect square. What is the number?
(Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9.)
