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प्रश्न
Write five numbers which you cannot decide whether they are square just by looking at the unit's digit.
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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 have to verify that.
Applying these two conditions, we cannot determine whether the following numbers are squares just by looking at their unit digits:
1111, 1001, 1555, 1666 and 1999
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संबंधित प्रश्न
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 be divided so that the resulting number is a perfect square:
1800
By just examining the unit digit, can you tell which of the following cannot be whole square?
1024
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.
There are fourteen square number upto 200.
Find the least square number, exactly divisible by each one of the number:
8, 12, 15 and 20
Find the smallest number by which 2592 be multiplied so that the product is a perfect square.
Find the smallest perfect square divisible by 3, 4, 5 and 6.
Examine if the following is a perfect square
725
