| 2021-05-13 | adamgm | NF | no factor from 2^73 to 2^74 |
| 2020-10-27 | SRBase | NF | no factor from 2^72 to 2^73 |
| 2020-06-15 | SRBase | NF | no factor from 2^71 to 2^72 |
| 2020-03-07 | Cornell Library | NF | no factor from 2^70 to 2^71 |
| 2019-02-11 | Chabot Prime | NF | no factor from 2^69 to 2^70 |
| 2018-01-25 | Kendall Perry | NF | no factor from 2^68 to 2^69 |
| 2016-09-10 | Derek | NF | no factor from 2^67 to 2^68 |
| 2015-10-23 | mikeblas | NF | no factor from 2^66 to 2^67 |
| 2012-08-05 | america64 | NF | no factor from 2^65 to 2^66 |
| 2011-05-31 | Charles A. Morris | NF | no factor from 2^64 to 2^65 |
| 2010-05-19 | Architects Cubed | NF | no factor from 2^63 to 2^64 |
