| 2340823 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 118 / 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) | 2017-10-12 | Oliver Kruse | 5FB26F4FC26E1AFB | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-24 | storm5510 | 5FB26F4FC26E1AFB | 1 | 1628969 | 1 | 3 | | Verified | Certified Good | 2025-05-05 | feather | 38132778FAD6982A | 2 | 1482726 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-05-05 | RAustie | CERT | Proof certified good | | 2025-05-05 | feather | C-PRP | M2340823/54159607706063/5640466247005361689361 : 38132778FAD6982A Proof Certified Good
Proof Power: 6
| | 2025-05-04 | feather | F-ECM | Factor: 5640466247005361689361 / ECM curve 1, B1=81646, B2=94798011, Edwards Sigma=4838533289549639 | | 2021-05-03 | ViliamF | NF-PM1 | B1=5000000, B2=500000000 | | 2018-03-18 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2340823/54159607706063 : 5FB26F4FC26E1AFB | | 2017-10-12 | Oliver Kruse | C-PRP | M2340823/54159607706063 : 5FB26F4FC26E1AFB |
|
