| 8421167 | 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 |
|---|
| Factored | PRP without proof (not generated) | 2018-10-25 | rucio | 78438A0CA77CF003 | 4 | 640537 | 5 | 3 | | Factored | PRP without proof (not generated) | 2020-05-26 | GAN | 78438A0CA77CF003 | 4 | 2310680 | 5 | 3 | | Verified | Certified Good | 2022-09-05 | Perig | 78438A0CA77CF003 | 5 | 3216159 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-03-15 | Stef42 | NF-PM1 | B1=3000000, B2=11041359420 | | 2022-12-27 | LordJulius | NF | no factor TF: 68-69 | | 2022-12-27 | LordJulius | NF | no factor TF: 67-68 | | 2022-09-06 | Massimo Cappelli (ik5pwa) | CERT | Proof certified good | | 2022-09-05 | Perig | C-PRP | M8421167/6686406599/24657176977/49988047313/550101837284903/205399577375423667617 : 78438A0CA77CF003 Proof Certified Good
Proof Power: 8
| | 2022-08-31 | TJAOI | F | Factor: 205399577375423667617 | | 2020-05-26 | GAN | C-PRP | M8421167/6686406599/24657176977/49988047313/550101837284903 : 78438A0CA77CF003 | | 2018-10-25 | rucio | C-PRP | M8421167/6686406599/24657176977/49988047313/550101837284903 : 78438A0CA77CF003 | | 2008-09-08 | Will Edgington | F | Factor: 550101837284903 | | 2008-09-08 | Will Edgington | F | Factor: 49988047313 | | 2008-09-08 | Will Edgington | F | Factor: 24657176977 |
|
