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प्रश्न
Find if the following number is a perfect cube?
1331
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उत्तर
1331
| 11 | 1331 |
| 11 | 121 |
| 11 | 11 |
| 1 |
∴ 1331 = 11 x 11 x 11 = (11)3
∴ 1331 is a perfect cube.
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