| 2521327 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 148 / 280 |
Estimated T-Level: 22.6 ⓘ TF below 2^70 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Richard Workman | 8436ABE7300C1CA4 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-04-02 | Phil Brett | 8436ABE7300C1CA4 | 15023 | Windows,Prime95,v17,(aka WT1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-14 | Oliver Kruse | D3C0242A80F196DF | 1 | 785275 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-30 | storm5510 | D3C0242A80F196DF | 1 | 492358 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-01-25 | USAFSS | NF-PM1 | B1=226000, B2=238697550 | | 2017-11-30 | storm5510 | C-PRP | M2521327/13336778101230291473 : D3C0242A80F196DF | | 2017-10-14 | Oliver Kruse | C-PRP | M2521327/13336778101230291473 : D3C0242A80F196DF | | 2003-10-31 | Team Prime Rib | F-PM1 | Factor: 13336778101230291473 | | 2003-10-23 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-02 | -anonymous- | C-LL | 8436ABE7300C1CA4 | | 1999-03-15 | -anonymous- | NF | no factor TF: 1-59 |
|
