| 2351803 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 125 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 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) | 2017-10-12 | Oliver Kruse | 3A6831E87C0EFCB3 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-10-12 | Oliver Kruse | 55DB2E68CB2AE2FB | 4 | 1974077 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-24 | storm5510 | 55DB2E68CB2AE2FB | 4 | 1687870 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-04-27 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2351803/37628849/1307755979589023/2344668344646113/8040375408305143 : 55DB2E68CB2AE2FB | | 2017-10-12 | Oliver Kruse | C-PRP | M2351803/37628849/1307755979589023/2344668344646113/8040375408305143 : 55DB2E68CB2AE2FB | | 2017-10-12 | Oliver Kruse | C-PRP | M2351803/known_factors : 3A6831E87C0EFCB3 | | 2014-08-26 | TJAOI | F | Factor: 8040375408305143 | | 2014-06-17 | TJAOI | F | Factor: 2344668344646113 | | 2014-05-22 | TJAOI | F | Factor: 1307755979589023 |
|
