| 2021-05-13 | Dominik Radler | NF | no factor from 2^73 to 2^74 |
| 2020-10-27 | SRBase | NF | no factor from 2^72 to 2^73 |
| 2018-05-29 | storm5510 | NF | no factor from 2^71 to 2^72 |
| 2018-05-29 | storm5510 | NF | no factor from 2^70 to 2^71 |
| 2018-05-29 | storm5510 | NF | no factor from 2^69 to 2^70 |
| 2017-12-27 | John Garvin | NF | no factor from 2^68 to 2^69 |
| 2016-09-07 | Dave Bell | NF | no factor from 2^67 to 2^68 |
| 2015-10-19 | Michael.Reilly | NF | no factor from 2^66 to 2^67 |
| 2012-07-07 | america64 | NF | no factor from 2^65 to 2^66 |
| 2011-05-27 | oodaira | NF | no factor from 2^64 to 2^65 |