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प्रश्न
Examine if the following is a perfect square
725
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उत्तर
725 = 5 × 5 × 29 = 52 × 29
Here the second prime factor 29 does not have a pair.
Hence 725 is not a perfect square number.
| 5 | 725 |
| 5 | 145 |
| 29 | 29 |
| 1 |
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