| 2581769 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 231 / 280 |
Estimated T-Level: 24.1 ⓘ TF below 2^75 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | INTERSHOP Communications | 098E3E7042268994 | 0 | Windows,Prime95,v14,NT service,(aka WQ5) | | Factored | 1999-04-13 | Robert Braunwart | 098E3E7042268994 | 202171 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-15 | Oliver Kruse | AD4A0FE34DF94968 | 1 | 2209495 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-02 | storm5510 | AD4A0FE34DF94968 | 1 | 2380507 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-03-11 | LordJulius | NF | no factor TF: 1-60 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2581769/106648075017792787657 : AD4A0FE34DF94968 | | 2017-10-15 | Oliver Kruse | C-PRP | M2581769/106648075017792787657 : AD4A0FE34DF94968 | | 2011-10-10 | markr | F-PM1 | Factor: 106648075017792787657 | | 2011-01-12 | Joss | NF-PM1 | B1=50000 | | 2010-11-14 | Joss | NF-PM1 | B1=20000 | | 2009-01-31 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-11-08 | Team Prime Rib | NF-PM1 | B1=15000, B2=206250 | | 2003-10-31 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-13 | -anonymous- | C-LL | 098E3E7042268994 | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-59 | | 1998-02-08 | Amperio | NF | no factor TF: 1-58 | | 1998-02-08 | Amperio | C-LL | 098E3E7042268994 |
|
