| 2476703 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 130 / 280 |
Estimated T-Level: 22.3 ⓘ TF below 2^69 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Will Coleda | 6B3D6343D72014BB | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-07-12 | Steinar H. Gunderson | 6B3D6343D72014BB | 1084234 | Windows,Prime95,v18,(aka WU1) |
|
| 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 | 53E3BF23F3653FB5 | 1 | 2180770 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-29 | storm5510 | 53E3BF23F3653FB5 | 1 | 101992 | 5 | 3 | | Verified | Certified Good | 2025-03-31 | feather | 53E3BF23F3653FB5 | 2 | 1046226 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-31 | TM | CERT | Proof certified good | | 2025-03-31 | feather | C-PRP | M2476703/8824787161596857921/879691654426891403599 : 53E3BF23F3653FB5 Proof Certified Good
Proof Power: 7
| | 2025-03-31 | feather | F-ECM | Factor: 879691654426891403599 / ECM curve 42, B1=65185, B2=17294550, Edwards Sigma=7707739609424955 | | 2022-03-10 | LordJulius | NF | no factor TF: 1-60 | | 2018-09-28 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-29 | storm5510 | C-PRP | M2476703/8824787161596857921 : 53E3BF23F3653FB5 | | 2017-10-14 | Oliver Kruse | C-PRP | M2476703/8824787161596857921 : 53E3BF23F3653FB5 | | 2009-02-11 | Smurgs | F-ECM | Factor: 8824787161596857921 | | 2009-01-15 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-10-31 | Team Prime Rib | NF-PM1 | B1=15000, B2=228750 | | 2003-10-14 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-08-16 | -anonymous- | NF | no factor TF: 1-59 | | 1999-07-27 | -anonymous- | C-LL | 6B3D6343D72014BB | | 1999-07-12 | -anonymous- | C-LL | 6B3D6343D72014BB |
|
