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Question
The following number is a perfect cube or not?
46656
Sum
Solution
The prime factorisation of 46656 is as follows:
| 2 | 46656 |
| 2 | 23328 |
| 2 | 11664 |
| 2 | 5832 |
| 2 | 2916 |
| 2 | 1458 |
| 3 | 729 |
| 3 | 243 |
| 3 | 81 |
| 3 | 27 |
| 3 | 9 |
| 3 | 3 |
| 1 |
46656 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3
Here, as each prime factor is appearing as many times as a perfect multiple of 3.
Therefore, 46656 is a perfect cube.
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