| 1234577 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 260 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 104 / 640 |
Estimated T-Level: 25.8 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2004-09-02 | Thomas Hertz | E8A49805FFAAA61E | 3845 | Windows,Prime95,v23,(aka WZ1) | | Factored | 2005-04-02 | Andrew Mueller | E8A49805FFAAA61E | 1086582 | Windows,Prime95,v23,(aka WZ1) |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Factored | Certified Good Power=6 | 2025-09-01 | Kriesel | F61B1AF6F972ED3F | 0 | 1 | 3 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-09-29 | Oliver Kruse | 476D4CDB5B80C33E | 2 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-10-19 | kkmrkkblmbrbk | 476D4CDB5B80C33E | 2 | 302631 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-02 | Chuck | CERT | Proof certified good | | 2025-09-01 | Kriesel | C-PRP | F61B1AF6F972ED3F Proof Certified Good
Proof Power: 6
| | 2017-10-19 | kkmrkkblmbrbk | C-PRP | M1234577/17284079/110381060417 : 476D4CDB5B80C33E | | 2017-09-29 | Oliver Kruse | C-PRP | M1234577/17284079/110381060417 : 476D4CDB5B80C33E | | 2016-03-17 | alpertron | NF-PM1 | B1=300000, B2=10000000, E=12 | | 2008-07-15 | J Feitsma | F | Factor: 110381060417 | | 2005-04-02 | -anonymous- | C-LL | E8A49805FFAAA61E | | 2004-09-14 | -anonymous- | C-LL | E8A49805FFAAA61E | | 2004-09-02 | -anonymous- | C-LL | E8A49805FFAAA61E |
|
