| 23562031 | Composite: proven not-prime with Lucas-Lehmer test No factors below 273 TF target 270 |
| P-1 | | B1 = | 1200000 | | B2 = | 1392029100 |
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| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2004-07-02 | F. David Babcock | 956BC91FEBF915DA | 18249992 | Windows,Prime95,v22,(aka WY1) | | Verified | 2010-03-16 | Sturle Sunde | 956BC91FEBF915DA | 13188000 | Linux 64-bit,Prime95,v25.7,build 3 |
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| History | | Date | User | Type | Result |
|---|
| 2025-12-07 | Tha | NF-PM1 | B1=1200000, B2=1392029100 | | 2023-01-14 | Sid & Andy | NF | no factor TF: 72-73 | | 2021-06-27 | -anonymous- | NF | no factor TF: 71-72 | | 2021-06-26 | -anonymous- | NF | no factor TF: 70-71 | | 2015-04-28 | James Heinrich | NF | no factor TF: 1-70 | | 2010-03-16 | Sturle Sunde | C-LL | 956BC91FEBF915DA | | 2004-08-04 | sannerud.com | NF | no factor TF: 1-67 | | 2004-07-02 | -anonymous- | C-LL | 956BC91FEBF915DA | | 2004-05-25 | -anonymous- | NF-PM1 | B1=275000, B2=6806250 | | 2004-03-08 | sannerud.com | NF | no factor TF: 1-67 | | 2004-02-07 | sannerud.com | NF | no factor TF: 1-67 | | 2004-01-07 | sannerud.com | NF | no factor TF: 1-67 | | 2003-12-13 | sannerud.com | NF | no factor TF: 1-67 | | 2003-12-02 | sannerud.com | NF | no factor TF: 1-67 | | 2003-07-30 | -anonymous- | NF | no factor TF: 1-60 | | 2001-09-10 | Net_Force | NF | no factor TF: 1-56 |
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