| 2269457 | Composite, with 5 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 162 / 640 |
Estimated T-Level: 26.3 ⓘ TF below 2^82 is very unlikely to find new factors due to ECM effort. |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-10-11 | Oliver Kruse | DC7851C1F3C24102 | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-10-18 | Oliver Kruse | C78262162E11846E | 4 | 1691174 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-21 | storm5510 | C78262162E11846E | 4 | 1347363 | 5 | 3 | | Verified | Certified Good | 2025-07-27 | Elysia | C78262162E11846E | 5 | 1370095 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-07-27 | EthanD | CERT | Proof certified good | | 2025-07-27 | Elysia | C-PRP | M2269457/240775770959/442943539433/4434954259852601/2068062452517265553119/50523798174435699812071 : C78262162E11846E Proof Certified Good
Proof Power: 7
| | 2025-07-20 | TJAOI | F-ECM | Factor: 50523798174435699812071 / ECM curve 10, B1=250000, B2=251325195, Edwards Sigma=7924281892343767 | | 2017-11-21 | storm5510 | C-PRP | M2269457/240775770959/442943539433/4434954259852601/2068062452517265553119 : C78262162E11846E | | 2017-10-18 | Oliver Kruse | C-PRP | M2269457/240775770959/442943539433/4434954259852601/2068062452517265553119 : C78262162E11846E | | 2017-10-11 | Oliver Kruse | C-PRP | M2269457/known_factors : DC7851C1F3C24102 | | 2016-04-26 | alpertron | F-PM1 | Factor: 2068062452517265553119 / B1=500000, B2=15000000 | | 2014-07-18 | -anonymous- | F | Factor: 4434954259852601 | | 2008-07-14 | George Woltman | F-ECM | Factor: 442943539433 |
|
