| 1301701 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 260 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 105 / 640 |
Estimated T-Level: 25.8 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Factored | Certified Good Power=6 | 2025-09-01 | Kriesel | AB0EE0BC578F7E89 | 0 | 1 | 3 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-09-30 | Oliver Kruse | B81EE9CB31638F7E | 2 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-10-22 | kkmrkkblmbrbk | B81EE9CB31638F7E | 2 | 1038087 | 1 | 3 | | Verified | PRP without proof (not generated) | 2018-04-29 | Oliver Kruse | AB0EE0BC578F7E89 | 4 | 257755 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-05-01 | storm5510 | AB0EE0BC578F7E89 | 4 | 1023132 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-02 | Hiroyuki Yasui | CERT | Proof certified good | | 2025-09-01 | Kriesel | C-PRP | AB0EE0BC578F7E89 Proof Certified Good
Proof Power: 6
| | 2018-05-01 | storm5510 | C-PRP | M1301701/23180168124199/918366248147569807/5065307253023057555783/10548024222566495454967 : AB0EE0BC578F7E89 | | 2018-04-29 | Oliver Kruse | C-PRP | M1301701/23180168124199/918366248147569807/5065307253023057555783/10548024222566495454967 : AB0EE0BC578F7E89 | | 2018-04-27 | TJAOI | F-ECM | Factor: 10548024222566495454967 | | 2018-04-27 | TJAOI | F-ECM | Factor: 5065307253023057555783 | | 2017-10-22 | kkmrkkblmbrbk | C-PRP | M1301701/23180168124199/918366248147569807 : B81EE9CB31638F7E | | 2017-09-30 | Oliver Kruse | C-PRP | M1301701/23180168124199/918366248147569807 : B81EE9CB31638F7E | | 2016-03-17 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2015-12-07 | TJAOI | F | Factor: 918366248147569807 |
|
