| 8419423 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| P-1 factors | |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2000-06-26 | Ralph Sassenhausen | DBFA1F7D133B9DE1 | 2693940 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-09-29 | Ars Technica Team Prime Rib | DBFA1F7D133B9DE1 | 4059704 | Windows,Prime95,v21,NT service,(aka WX5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2018-10-24 | rucio | E2E8BD310F385E1D | 1 | 508165 | 5 | 3 | | Factored | PRP without proof (not generated) | 2020-05-25 | Luigi Morelli | E2E8BD310F385E1D | 1 | 5289865 | 5 | 3 | | Verified | Certified Good | 2021-12-05 | Joe S. | E2E8BD310F385E1D | 2 | 613264 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-03 | Stef42 | NF-PM1 | B1=1125000, B2=1551786600 | | 2022-04-10 | James Heinrich | NF | no factor TF: 66-67 | | 2022-04-10 | James Heinrich | NF | no factor TF: 64-65 | | 2022-04-10 | James Heinrich | NF | no factor TF: 65-66 | | 2022-04-09 | LordJulius | NF | no factor TF: 65-66 | | 2022-04-09 | LordJulius | NF | no factor TF: 66-67 | | 2022-04-09 | LordJulius | NF | no factor TF: 1-64 | | 2022-04-09 | LordJulius | NF | no factor TF: 64-65 | | 2021-12-05 | Michal Bryndza | CERT | Proof certified good | | 2021-12-05 | Joe S. | C-PRP | M8419423/4726977635567515661023183/166703022484930034567 : E2E8BD310F385E1D Proof Certified Good Proof Power: 8
| | 2021-11-29 | TJAOI | F | Factor: 166703022484930034567 | | 2020-05-25 | Luigi Morelli | C-PRP | M8419423/4726977635567515661023183 : E2E8BD310F385E1D | | 2018-10-24 | rucio | C-PRP | M8419423/4726977635567515661023183 : E2E8BD310F385E1D | | 2012-07-26 | bcp19 | F-PM1 | Factor: 4726977635567515661023183 | | 2002-10-07 | -anonymous- | NF | no factor TF: 1-64 | | 2002-09-29 | Team Prime Rib | NF-PM1 | B1=45000, B2=675000 | | 2002-09-29 | Team Prime Rib | C-LL | DBFA1F7D133B9DE1 | | 2000-06-29 | -anonymous- | C-LL | DBFA1F7D133B9DE1 | | 2000-06-26 | -anonymous- | C-LL | DBFA1F7D133B9DE1 | | 2000-01-19 | -anonymous- | NF | no factor TF: 1-64 | | 1998-09-27 | -anonymous- | NF | no factor TF: 1-63 |
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