| 4618153 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 9 / 280 |
Estimated T-Level: 20.2 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Ken Kriesel | 8C52900EEA025150 | 0 | Windows,Prime95,v14,NT service,(aka WQ5) | | Factored | | Sturle Sunde | 8C52900EEA025150 | 0 | Mac,John Sweeney,v1.4,(aka J3) | | Factored | 2015-11-14 | MadPoo 🙂 | 8C52900EEA025150 | 2957692 | Windows 64-bit,Prime95,v26,(aka We4) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-05-01 | ATH | 0A0CE9966901BBA1 | 1 | 1672473 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-05-02 | storm5510 | 0A0CE9966901BBA1 | 1 | 4385249 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-05-02 | storm5510 | C-PRP | M4618153/75468267203767853047 : 0A0CE9966901BBA1 | | 2018-05-01 | ATH | C-PRP | M4618153/75468267203767853047 : 0A0CE9966901BBA1 | | 2018-05-01 | Gordon Spence | F | Factor: 75468267203767853047 / TF: 66-67 | | 2018-01-04 | Ismo Laitela | NF-PM1 | B1=1988203, B2=61634303, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-11-14 | MadPoo 🙂 | C-LL | 8C52900EEA025150 | | 2015-07-05 | snme2pm1 | NF | no factor TF: 65-66 | | 2015-01-21 | monst | NF | no factor TF: 64-65 | | 2015-01-20 | Jayder | NF | no factor TF: 63-64 | | 2012-01-26 | Squeeky_Squirrel | NF-PM1 | B1=110000, B2=2035000, E=6 | | 2011-12-09 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-08-02 | markr | NF | no factor TF: 61-62 | | 2009-08-29 | Carsten Kossendey | NF-PM1 | B1=25000, B2=375000 | | 2002-08-24 | David Campeau | NF | no factor TF: 1-61 |
|
