| 2021-05-13 | Richard Thomas | NF | no factor from 2^76 to 2^77 |
| 2020-11-18 | arpcar | NF | no factor from 2^75 to 2^76 |
| 2020-03-11 | ViliamF | NF | no factor from 2^74 to 2^75 |
| 2020-03-11 | ViliamF | NF | no factor from 2^73 to 2^74 |
| 2020-01-23 | La Güira | NF | no factor from 2^72 to 2^73 |
| 2016-01-31 | Jacques MOLNE | NF | no factor from 2^71 to 2^72 |
| 2016-01-31 | Jacques MOLNE | NF | no factor from 2^70 to 2^71 |
| 2016-01-31 | Jacques MOLNE | NF | no factor from 2^69 to 2^70 |
| 2012-05-02 | LaurV | NF | no factor from 2^66 to 2^69 |
| 2010-10-29 | Architects Cubed | NF | no factor from 2^65 to 2^66 |