| 2301461 | 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 | 120 / 640 |
Estimated T-Level: 25.9 ⓘ 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) | 2017-10-11 | Oliver Kruse | 49966A087B30BEB2 | 3 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-22 | storm5510 | 49966A087B30BEB2 | 3 | 677942 | 1 | 3 | | Verified | Certified Good | 2025-11-21 | Gnarwhals | 61479A147720FCA2 | 4 | 97744 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-11-21 | Nicholas Hodson | CERT | Proof certified good | | 2025-11-21 | Gnarwhals | C-PRP | M2301461/69043831/2499386647/5468271337/20375815487400717112369 : 61479A147720FCA2 Proof Certified Good
Proof Power: 7
| | 2025-11-15 | TJAOI | F-ECM | Factor: 20375815487400717112369 / ECM curve 10, B1=250000, B2=264647565, Edwards Sigma=8778086533886519 | | 2021-04-27 | Dylan Delgado | NF-PP1 | Start=2/7, B1=2000000, B2=146000000 | | 2021-04-06 | ViliamF | NF-PM1 | B1=5000000, B2=505000000 | | 2018-02-15 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-22 | storm5510 | C-PRP | M2301461/69043831/2499386647/5468271337 : 49966A087B30BEB2 | | 2017-10-11 | Oliver Kruse | C-PRP | M2301461/69043831/2499386647/5468271337 : 49966A087B30BEB2 | | 2008-07-14 | George Woltman | F-ECM | Factor: 5468271337 | | 2008-07-14 | George Woltman | F-ECM | Factor: 2499386647 |
|
