| 2020-12-13 | Ben Delo | CERT | PRP Certification Proof certified good |
| 2020-12-13 | mrh | C-PRP | M1874723/3432445394782936211576753 : 6E8D69B974D87520 PRP proof power = 7 PRP: Verified Proof certified good |
| 2020-12-13 | GAN | F-ECM | Factor: 3432445394782936211576753 / (ECM curve 2, B1=50000, B2=5000000) |
| 2019-06-10 | TJAOI | NF | no factor from 2^67 to 2^68 |
| 2018-10-25 | Joss | NF-PM1 | B1=1874723, B2=206219530, E=12 |
| 2018-09-27 | Joss | NF-PM1 | B1=1874723, B2=187472300, E=12 |
| 2018-02-27 | Joss | NF-PM1 | B1=1874723, B2=111052800, E=12 |
| 2018-02-12 | TJAOI | NF | no factor from 2^66 to 2^67 |
| 2018-02-10 | Joss | NF-PM1 | B1=1874723, B2=55526400, E=12 |
| 2018-02-05 | Joss | NF-PM1 | B1=1874723, B2=27763200, E=12 |
| 2018-01-16 | Joss | NF-PM1 | B1=1874723, B2=13881600, E=12 |
| 2017-04-29 | Joss | NF-PM1 | B1=1388160, B2=13881600, E=12 |
| 2017-01-21 | Joss | NF-PM1 | B1=1156800 |
| 2017-01-03 | Joss | NF-PM1 | B1=864000 |
| 2016-12-20 | Joss | NF-PM1 | B1=720000 |
| 2016-11-13 | Joss | NF-PM1 | B1=600000 |
| 2016-02-23 | Mark Rose | NF | no factor from 2^61 to 2^62 |
| 2016-02-23 | Mark Rose | NF | no factor from 2^62 to 2^63 |
| 2016-02-23 | Mark Rose | NF | no factor from 2^58 to 2^60 |
| 2015-10-07 | Bruno Victal | NF-PM1 | B1=500000, B2=15000000, E=12 |
| 2015-09-12 | ramgeis | NF | no factor from 2^65 to 2^66 |
| 2015-06-27 | MadPoo | C-LL | ABE2EEBAE26D5468 |
| 2015-05-08 | snme2pm1 | NF | no factor from 2^64 to 2^65 |
| 2015-05-08 | snme2pm1 | NF | no factor from 2^63 to 2^64 |
| 2012-01-11 | markr | NF-PM1 | B1=275000, B2=6000000, E=12 |
| 2011-03-08 | GrunwalderGIMP | NF | no factor from 2^1 to 2^63 |
| 2010-04-12 | Architects Cubed | NF | no factor from 2^60 to 2^61 |
