| 2719 | Composite: proven not-prime with Lucas-Lehmer test No factors below 266 TF target 244 |
| Assignments | | Assigned | User | Work Type | Stage | % Done | Updated | Est Complete | Expired |
|---|
| 2026-02-01 | Mario Tranquillini | ECM | C47S1 | 26.92 % | 2026-03-17 | 2026-03-20 | |
|
| P-1 | | B1 = | 6000000000000 | | B2 = | 9223372036854775807 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 640 / 640 | | 35 | 1000000 | 1566 / 1566 | | 40 | 3000000 | 4588 / 4588 | | 45 | 11000000 | 9201 / 9201 | | 50 | 44000000 | 16550 / 16550 | | 55 | 110000000 | 40830 / 40830 | | 60 | 260000000 | 105362 / 105362 | | 65 | 800000000 | 194238 / 194238 | | 70 | 2400000000 | 160664 / 350860 |
Estimated T-Level: 67.3 ⓘ TF below 2^219 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | | Unknown | 1C43 | 0 | Unknown,(aka U) | | Verified | | George Woltman | F11C68200EA21C43 | 0 | Woltman,Prime95,first web release,(aka W4) | | Verified | | Brian J. Beesley | F11C68200EA21C43 | 0 | Mac,John Sweeney,v1.4,(aka J3) | | Verified | 2015-04-11 | MadPoo 🙂 | F11C68200EA21C43 | 751 | Windows 64-bit,Prime95,v26,(aka We4) |
|
| History | | Date | User | Type | Result |
|---|
| 2025-06-20 | Anton Repko | NF-PM1 | B1=6000000000000, B2=1.8002581982519E+19 | | 2024-12-08 | coffeeguy | NF-PM1 | B1=2000000000000, B2=2500766411279556420 | | 2023-08-11 | masser | NF-PP1 | Start=6/5, B1=3580000000, B2=640820000000 | | 2023-07-16 | masser | NF-PP1 | Start=124/41, B1=3580000000, B2=143200000000 | | 2023-07-03 | masser | NF-PM1 | B1=216000000000, B2=486755758363664790 | | 2022-05-22 | Anton Repko | NF | no factor TF: 65-66 | | 2021-05-13 | ATH | NF-PP1 | Start=2/7, B1=1000000000, B2=241000000000 | | 2021-02-17 | Anton Repko | NF | no factor TF: 64-65 | | 2018-03-03 | snme2pm1 | NF | no factor TF: 63-64 | | 2016-10-10 | snme2pm1 | NF | no factor TF: 62-63 | | 2016-06-14 | alex | NF-PM1 | B1=1000000000000, B2=10154590139388108 | | 2016-05-08 | -anonymous- | NF-PM1 | B1=100000000000, B2=1000000000000, E=12 | | 2016-02-23 | LaurV | NF | no factor TF: 57-58 | | 2015-07-02 | snme2pm1 | NF | no factor TF: 61-62 | | 2015-04-11 | MadPoo 🙂 | C-LL | F11C68200EA21C43 | | 2013-09-30 | David Campeau | NF-PM1 | B1=10229590000, B2=716071300000, E=12 | | 2012-05-22 | bcp19 | NF | no factor TF: 60-61 | | 2011-04-17 | Joss | NF-PM1 | B1=10000000000 | | 2011-01-19 | monst | NF | no factor TF: 58-60 | | 2003-02-16 | Alex Kruppa | NF | no factor TF: 1-57 | | 2003-01-25 | Alex Kruppa | NF | no factor TF: 1-57 | | 2003-01-16 | Alex Kruppa | NF | no factor TF: 1-57 | | 2002-12-31 | -anonymous- | NF-PM1 | B1=4290000000 | | 2002-09-14 | -anonymous- | NF-PM1 | B1=3221225472, B2=4290000000, E=48 | | 2002-08-03 | -anonymous- | NF-PM1 | B1=2147483648, B2=4290000000, E=48 | | 2002-06-02 | -anonymous- | NF-PM1 | B1=1073741824, B2=4290000000 | | 2001-06-09 | -anonymous- | NF-PM1 | B1=3000000000, B2=4290000000 | | 2001-06-03 | -anonymous- | NF-PM1 | B1=43000000, B2=4290000000 | | 2001-02-11 | -anonymous- | NF-PM1 | B1=1000000, B2=100000000 | | 2000-08-10 | -anonymous- | NF | no factor TF: 1-56 | | 2000-02-01 | -anonymous- | NF | no factor TF: 54-55 | | 1999-12-23 | -anonymous- | NF | no factor TF: 53-54 | | 1999-12-23 | -anonymous- | NF | no factor TF: 53-54 | | 1999-09-22 | -anonymous- | NF | no factor TF: 52-53 | | 1998-06-20 | -anonymous- | NF | no factor TF: 50-52 |
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