| 8321123 | Composite, with 5 known prime factors. Cofactor is composite. Trial Factored to 269 TF target 268 |
| Factored | |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-14 | Oliver Kruse | BD761E8ED4ECAEB3 | 5 | 4690399 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-19 | marssystems | BD761E8ED4ECAEB3 | 5 | 6799147 | 5 | 3 |
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| History | | Date | User | Type | Result |
|---|
| 2024-03-06 | Stef42 | NF-PM1 | B1=3000000, B2=53783100 | | 2022-12-27 | LordJulius | NF | no factor TF: 68-69 | | 2022-11-24 | LordJulius | NF | no factor TF: 67-68 | | 2022-11-24 | LordJulius | NF | no factor TF: 66-67 | | 2022-11-24 | LordJulius | NF | no factor TF: 65-66 | | 2022-11-24 | LordJulius | NF | no factor TF: 64-65 | | 2020-04-19 | marssystems | C-PRP | M8321123/3411660431/214285559497/1221208011481/1302505383191/1328992050250873 : BD761E8ED4ECAEB3 | | 2018-10-14 | Oliver Kruse | C-PRP | M8321123/3411660431/214285559497/1221208011481/1302505383191/1328992050250873 : BD761E8ED4ECAEB3 | | 2014-05-23 | TJAOI | F | Factor: 1328992050250873 | | 2008-09-08 | Will Edgington | F | Factor: 1302505383191 | | 2008-09-08 | Will Edgington | F | Factor: 1221208011481 | | 2008-09-08 | Will Edgington | F | Factor: 214285559497 |
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