| Giver | Post | Date |
| paulvsimon | The least perfect square, which is divisible by each of 21, 36 and 66 | 28-May-2024 |
| Electrodehunt | The least perfect square, which is divisible by each of 21, 36 and 66 | 11-May-2024 |
| Sidiano7 | The least perfect square, which is divisible by each of 21, 36 and 66 | 11-May-2024 |
| Mitochondria | The least perfect square, which is divisible by each of 21, 36 and 66 | 18-Sep-2020 |
| saifu | The least perfect square, which is divisible by each of 21, 36 and 66 | 13-Sep-2020 |
| Fdambro294 | The least perfect square, which is divisible by each of 21, 36 and 66 | 13-Sep-2020 |
| warrior1991 | The least perfect square, which is divisible by each of 21, 36 and 66 | 30-Jul-2020 |
| dch | The least perfect square, which is divisible by each of 21, 36 and 66 | 14-Apr-2019 |