| 2327651 | 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 | 122 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| 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 | FC8AD7F2EEEAD0AD | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-23 | storm5510 | FC8AD7F2EEEAD0AD | 1 | 826941 | 1 | 3 | | Verified | Certified Good | 2026-03-25 | JohnnyBGood | 412B80BBB5DCF757 | 2 | 211563 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-03-25 | Dr Mamdouh Barakat on MBAi.Cloud | CERT | Proof certified good | | 2026-03-25 | JohnnyBGood | C-PRP | Proof Certified Good
Proof Power: 7
| | 2026-03-19 | TJAOI | F-ECM | Factor: 529311861608442873420019509049 / ECM curve 12, B1=250000, B2=252249855, Edwards Sigma=695316213631762 | | 2021-05-06 | ViliamF | NF-PM1 | B1=5000000, B2=505000000 | | 2018-03-05 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-23 | storm5510 | C-PRP | M2327651/856575569 : FC8AD7F2EEEAD0AD | | 2017-10-11 | Oliver Kruse | C-PRP | M2327651/856575569 : FC8AD7F2EEEAD0AD |
|
