| Fermat F22 | Composite: 1 known prime factor Trial Factored to 268 TF target 265 |
| Assignments | | Assigned | User | Work Type | Stage | % Done | Updated | Est Complete | Expired |
|---|
| 2026-07-28 | Mileh | ECM | C34S1 | 53.77 % | 2026-11-01 | 2026-12-24 | | | 2026-03-03 | Buckle | ECM | C34S1 | 22.16 % | 2026-10-16 | 2026-12-11 | | | 2026-02-19 | Phyxick | ECM | C42S1 | 90.02 % | 2026-11-01 | 2027-01-06 | | | 2026-01-01 | Buckle | ECM | C43S1 | 91.06 % | 2026-10-16 | 2026-11-10 | |
|
| Factored | |
| P-1 factors | | Date | Factors | B1 | B2 |
|---|
| 2026-02-16 | No new factors discovered | 32000000000 | 3200335094826870 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 640 / 640 | | 35 | 1000000 | 1566 / 1566 | | 40 | 3000000 | 4588 / 4588 | | 45 | 11000000 | 3395 / 9201 |
Estimated T-Level: 41.8 ⓘ TF below 2^134 is very unlikely to find new factors due to ECM effort. |
| History | | Date | User | Type | Result |
|---|
| 2026-02-16 | Anton Repko | F-PM1 | Factor: 64658705994591851009055774868504577 / B1=32000000000, B2=3200335094826870 | | 2023-06-16 | James Heinrich | NF-PM1 | B1=20000000, B2=10128934200 | | 2021-09-04 | H Michaelson | NF-PP1 | Start=2/7, B1=1000000, B2=100000000 | | 2021-04-29 | ATH | NF-PP1 | Start=6/5, B1=20000000, B2=2000000000 | | 2021-04-23 | ATH | NF-PP1 | Start=2/7, B1=5000000, B2=500000000 | | 2010-03-25 | Buckle | F-ECM | Factor: 64658705994591851009055774868504577 |
|
