| 338747833 | Composite: proven not-prime with PRP test No factors below 284 TF target 281 |
| P-1 | | B1 = | 14000000 | | B2 = | 420000000 |
|
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Unverified | 2019-02-08 | Roland Clarkson | 8E1958022CA4C2__ | 288757991 | Windows 64-bit,Prime95,v29.4,build 8 |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Verified | Certified Good Power=11 | 2025-12-28 | Kriesel | 77BD99E5A6132FA9 | 0 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-28 | Yxinity | CERT | Proof certified good | | 2025-12-28 | Kriesel | C-PRP | 77BD99E5A6132FA9 Proof Certified Good
Proof Power: 11
| | 2020-02-07 | Roland Clarkson | NF-PM1 | B1=14000000, B2=420000000 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 81-82 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 82-83 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 83-84 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 78-79 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 79-80 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 80-81 | | 2019-08-23 | Roland Clarkson | NF | no factor TF: 77-78 | | 2019-02-08 | Roland Clarkson | C-LL | 8E1958022CA4C2__ | | 2019-01-03 | Roland Clarkson | NF-PM1 | B1=4820000 | | 2017-01-26 | mikr | NF | no factor TF: 76-77 | | 2017-01-24 | mikr | NF | no factor TF: 75-76 | | 2017-01-24 | mikr | NF | no factor TF: 73-74 | | 2017-01-24 | mikr | NF | no factor TF: 74-75 | | 2012-10-01 | Never Odd Or Even | NF | no factor TF: 72-73 | | 2012-04-11 | Never Odd Or Even | NF | no factor TF: 71-72 | | 2012-04-11 | Never Odd Or Even | NF | no factor TF: 70-71 | | 2012-04-05 | Never Odd Or Even | NF | no factor TF: 69-70 | | 2012-04-05 | Never Odd Or Even | NF | no factor TF: 65-69 | | 2010-04-28 | Architects Cubed | NF | no factor TF: 64-65 |
|
