| 2302387 | 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 | 115 / 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 | | Dan and Hannah Rubin | 799A423397B0D2C6 | 0 | Mac,John Sweeney,v1.4,(aka J3) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-10-11 | Oliver Kruse | B6860E8113F73A0F | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-22 | storm5510 | B6860E8113F73A0F | 1 | 788261 | 1 | 3 | | Verified | Certified Good | 2025-10-27 | 1144551144 | 2F01CB6283F0B6D9 | 2 | 468176 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-10-27 | LOBES | CERT | Proof certified good | | 2025-10-27 | 1144551144 | C-PRP | M2302387/72324022829593439/141527460958319834667273353 : 2F01CB6283F0B6D9 Proof Certified Good
Proof Power: 7
| | 2025-10-21 | TJAOI | F-ECM | Factor: 141527460958319834667273353 / ECM curve 1, B1=250000, B2=254046870, Edwards Sigma=8841242286797201 | | 2021-04-03 | ViliamF | NF-PM1 | B1=5000000, B2=505000000 | | 2018-02-16 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-22 | storm5510 | C-PRP | M2302387/72324022829593439 : B6860E8113F73A0F | | 2017-10-11 | Oliver Kruse | C-PRP | M2302387/72324022829593439 : B6860E8113F73A0F | | 2003-08-25 | -anonymous- | F | Factor: 72324022829593439 |
|
