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Question
Find the least number of four digits that is a perfect square.
Solution
As we know that the least number of four digit is 1000.
Let’s find the out the square root of 1000 by using long division method.
| 32 | |
| 3 | `bar10` `bar00` |
| 9 | |
| 62 | 100 |
| 124 | |
| – 24 |
Hence, the least number of four digits that is a perfect square
= 1000 + 24
= 1024
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