| 2770667 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 58 / 640 |
Estimated T-Level: 25.5 ⓘ TF below 2^80 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Dax Prather | C62C0007E917BA84 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1998-08-16 | Juraj Darmo | C62C0007E917BA84 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 1999-05-02 | Dietmar Krause | C62C0007E917BA84 | 1074441 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-07 | fordobr | 0EF2451EA56E389E | 1 | 436816 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-07 | Joan Gayon | CERT | Proof certified good | | 2025-03-07 | fordobr | C-PRP | M2770667/675758449228700983447887617 : 0EF2451EA56E389E Proof Certified Good
Proof Power: 7
| | 2025-03-07 | fordobr | F-ECM | Factor: 675758449228700983447887617 / ECM curve 13, B1=178008, B2=459443985, Edwards Sigma=6046737156950465 | | 2024-12-02 | yuriy_5-1 | NF-PM1 | B1=52642674, B2=1284463520340 | | 2024-04-26 | TJAOI | NF | no factor TF: 69-70 | | 2023-02-26 | Architects Cubed | NF-PM1 | B1=5000000, B2=8681331750 | | 2023-01-29 | Joss | NF-PM1 | B1=1000000, B2=392964000 | | 2021-05-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-02-24 | chuenkit | NF | no factor TF: 67-68 | | 2017-10-12 | Gordon Spence | NF | no factor TF: 66-67 | | 2017-02-25 | Joss | NF-PM1 | B1=294451, B2=2944510, E=6 | | 2017-02-20 | mikr | NF-PM1 | B1=2700000, B2=84000000, E=12 | | 2016-12-23 | Joss | NF-PM1 | B1=204480 | | 2016-10-26 | Joss | NF-PM1 | B1=170400 | | 2016-08-13 | Joss | NF-PM1 | B1=142000, B2=4730000, E=6 | | 2016-02-23 | Mark Rose | NF | no factor TF: 59-60 | | 2015-12-06 | omylist | NF | no factor TF: 65-66 | | 2015-04-21 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-04-21 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-14 | dbaugh | NF | no factor TF: 62-63 | | 2012-03-18 | Grant McCracken | NF | no factor TF: 61-62 | | 2010-11-30 | markr | NF-PM1 | B1=110000, B2=2365000, E=6 | | 2010-11-10 | Joss | NF-PM1 | B1=15000 | | 2009-01-30 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-11-16 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-05-02 | -anonymous- | C-LL | C62C0007E917BA84 | | 1998-08-16 | -anonymous- | C-LL | C62C0007E917BA84 | | 1998-04-11 | -anonymous- | NF | no factor TF: 1-59 |
|
