| 2258329 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 127 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Charlie Dorian | CA917AE729FF9AF8 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1999-03-26 | John Wyszynski | CA917AE729FF9AF8 | 1672680 | Linux 32-bit,Prime95,v17,(aka WT2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-10-10 | Oliver Kruse | B27EB54C22F787F0 | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-21 | storm5510 | B27EB54C22F787F0 | 1 | 1635267 | 1 | 3 | | Verified | Certified Good | 2023-05-02 | Nesowa | 7C94FD34234CBCC9 | 2 | 1028853 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-05-02 | curtisc | CERT | Proof certified good | | 2023-05-02 | Nesowa | C-PRP | M2258329/3941154386038312943/1100798198447271225233 : 7C94FD34234CBCC9 Proof Certified Good
Proof Power: 7
| | 2023-04-23 | Nesowa | F-ECM | Factor: 1100798198447271225233 / ECM curve 15, B1=50000, B2=27023535, Montgomery Sigma=2371240950052299 | | 2017-11-21 | storm5510 | C-PRP | M2258329/3941154386038312943 : B27EB54C22F787F0 | | 2017-10-10 | Oliver Kruse | C-PRP | M2258329/3941154386038312943 : B27EB54C22F787F0 | | 2016-04-13 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2008-12-27 | Smurgs | F-ECM | Factor: 3941154386038312943 | | 1999-03-26 | -anonymous- | C-LL | CA917AE729FF9AF8 |
|
