| 2345657 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 121 / 640 |
Estimated T-Level: 25.9 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Jeremy Goulstone | 2EA71507A9715669 | 0 | Windows,Prime95,v11,(aka WC) | | Factored | 1999-03-01 | Martijn Otto | 2EA71507A9715669 | 1351164 | Windows,Prime95,v17,(aka WT1) | | Factored | 2009-11-28 | Antikristianos | 2EA71507A9715669 | 1327505 | Windows 64-bit,Prime95,v25.11,build 2 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-12 | Oliver Kruse | F063148C37132CBA | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-11-24 | storm5510 | F063148C37132CBA | 1 | 239939 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-12-25 | -anonymous- | C-LL | 2EA71507A9715669 | | 2018-03-18 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2345657/71654984400889201142783 : F063148C37132CBA | | 2017-10-12 | Oliver Kruse | C-PRP | M2345657/71654984400889201142783 : F063148C37132CBA | | 2015-07-26 | guru | F-ECM | Factor: 71654984400889201142783 | | 2014-03-08 | Never Odd Or Even | NF | no factor TF: 69-70 | | 2014-03-08 | Never Odd Or Even | NF | no factor TF: 68-69 | | 2014-03-08 | Never Odd Or Even | NF | no factor TF: 67-68 | | 2014-03-08 | Never Odd Or Even | NF | no factor TF: 66-67 | | 2014-03-08 | Never Odd Or Even | NF | no factor TF: 65-66 | | 2013-11-12 | David Campeau | NF | no factor TF: 64-65 | | 2013-10-20 | SRJ2877 | NF | no factor TF: 63-64 | | 2013-10-20 | SRJ2877 | NF | no factor TF: 62-63 | | 2012-05-29 | Sebastian Hornbostel | NF | no factor TF: 61-62 | | 2010-03-02 | Bud | NF-PM1 | B1=500000, B2=10000000, E=12 | | 2009-11-28 | Antikristianos | C-LL | 2EA71507A9715669 | | 2009-01-15 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-21 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-03-01 | Martijn Otto | C-LL | 2EA71507A9715669 |
|
