| 2307083 | 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 | 150 / 640 |
Estimated T-Level: 26.2 ⓘ 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 | 975B68CE1FA4082E | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-22 | storm5510 | 975B68CE1FA4082E | 1 | 2037339 | 1 | 3 | | Verified | Certified Good | 2025-04-03 | feather | 79D3577AE5FDCB17 | 2 | 366964 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-04-03 | ondrejch | CERT | Proof certified good | | 2025-04-03 | feather | C-PRP | M2307083/7036603151/4671394357420203683471 : 79D3577AE5FDCB17 Proof Certified Good
Proof Power: 7
| | 2025-04-03 | feather | F-ECM | Factor: 4671394357420203683471 / ECM curve 16, B1=83341, B2=7899150, Edwards Sigma=5654492647223011 | | 2021-04-06 | ViliamF | NF-PM1 | B1=5000000, B2=305000000 | | 2018-02-20 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-22 | storm5510 | C-PRP | M2307083/7036603151 : 975B68CE1FA4082E | | 2017-10-11 | Oliver Kruse | C-PRP | M2307083/7036603151 : 975B68CE1FA4082E |
|
