| 8331131 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2018-10-13 | trebor | D53EB953FA4C9B80 | 1 | 4546946 | 5 | 3 | | Factored | PRP without proof (not generated) | 2020-04-23 | arnaud | D53EB953FA4C9B80 | 1 | 1041802 | 5 | 3 | | Verified | Certified Good | 2020-11-05 | LordJulius | D53EB953FA4C9B80 | 2 | 7483712 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-05-10 | Stef42 | NF-PM1 | B1=1025000, B2=1519818300 | | 2020-11-05 | curtisc | CERT | Proof certified good | | 2020-11-05 | LordJulius | C-PRP | M8331131/16662263/133782772029225041353 : D53EB953FA4C9B80 Proof Certified Good Proof Power: 8
| | 2020-11-03 | TJAOI | F | Factor: 133782772029225041353 | | 2020-04-23 | arnaud | C-PRP | M8331131/16662263 : D53EB953FA4C9B80 | | 2018-10-13 | trebor | C-PRP | M8331131/16662263 : D53EB953FA4C9B80 |
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