| Giver | Post | Date |
| VGR28 | If x is the product of integers a, b, c, and d, is x divisible by 128? | 05-Jan-2021 |
| roshz | If x is the product of integers a, b, c, and d, is x divisible by 128? | 05-Jan-2021 |
| MHIKER | Re: If x and y are positive numbers such that x + y = 1, which of the | 04-Jan-2021 |
| roshz | Re: If x and y are positive numbers such that x + y = 1, which of the | 04-Jan-2021 |