| Giver | Post | Date |
| pattypat | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 26-Nov-2022 |
| Fail2Success | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 05-Jul-2021 |
| daredevil73 | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 29-May-2021 |
| saintyzero | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 15-Sep-2020 |
| vndnjn | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 28-Apr-2020 |
| Carcass | Re: GRE Math Challenge #8- a, b and c are multiple of 15 | 22-Sep-2016 |