| 2480207 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 126 / 280 |
Estimated T-Level: 22.3 ⓘ TF below 2^69 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) | 2017-10-14 | Oliver Kruse | A7646BB51C528128 | 1 | 2090325 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-29 | storm5510 | A7646BB51C528128 | 1 | 825511 | 5 | 3 | | Verified | Certified Good | 2025-04-01 | feather | A7646BB51C528128 | 2 | 1980813 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-04-01 | Stixxy | CERT | Proof certified good | | 2025-04-01 | feather | C-PRP | M2480207/8199564343/29978080141532713714241 : A7646BB51C528128 Proof Certified Good
Proof Power: 7
| | 2025-04-01 | feather | F-ECM | Factor: 29978080141532713714241 / ECM curve 47, B1=65185, B2=8604420, Edwards Sigma=3131774099706776 | | 2022-03-22 | ANONYMOUS | NF-PM1 | B1=1500000, B2=1934416638 | | 2017-11-29 | storm5510 | C-PRP | M2480207/8199564343 : A7646BB51C528128 | | 2017-10-14 | Oliver Kruse | C-PRP | M2480207/8199564343 : A7646BB51C528128 |
|
