| Giver | Post | Date |
| Carcass | Re: GRE Math Challenge #9 | 17-Dec-2022 |
| SlackaHeadGRE | Re: GRE Math Challenge #9 | 23-Sep-2021 |
| AlaminMolla | Re: GRE Math Challenge #9 | 25-Jul-2019 |
| SHIKHAKUMAR0312 | Re: GRE Math Challenge #9 | 25-Jul-2018 |
| koulick89 | Re: GRE Math Challenge #9 | 18-Jun-2015 |