| 64236763 | Composite: proven not-prime with Lucas-Lehmer test No factors below 276 TF target 274 |
| P-1 | | B1 = | 1000000 | | B2 = | 30000000 |
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| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Bad | 2014-06-11 | jimmychau | 9E0453D4FB7FFFC9 | 17944464 | Windows 64-bit,Prime95,v26.6,build 3 | | Verified | 2021-03-30 | Christoph Zenger | 66F6811989D09F28 | 15774385 | Windows 64-bit,Prime95,v29.8,build 6 | | Verified | 2021-03-31 | ATH | 66F6811989D09F28 | 0 | gpuowl,v6.11-380-g79ea0cc |
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| History | | Date | User | Type | Result |
|---|
| 2021-03-31 | ATH | C-LL | 66F6811989D09F28 | | 2021-03-30 | Christoph Zenger | C-LL | 66F6811989D09F28 | | 2021-03-09 | Christoph Zenger | NF-PM1 | B1=1000000, B2=30000000, E=12 | | 2021-03-08 | Christoph Zenger | NF | no factor TF: 75-76 | | 2021-03-04 | Christoph Zenger | NF | no factor TF: 74-75 | | 2016-02-23 | Mark Rose | NF | no factor TF: 60-63 | | 2014-06-11 | jimmychau | C-LL | 9E0453D4FB7FFFC9 | | 2013-11-03 | TheJudger | NF-PM1 | B1=575000, B2=11212500, E=6 | | 2013-10-26 | GrunwalderGIMP | NF | no factor TF: 73-74 | | 2013-10-20 | LingUaan | NF | no factor TF: 72-73 | | 2013-09-13 | AllRandom | NF | no factor TF: 71-72 | | 2012-09-05 | kracker | NF | no factor TF: 70-71 | | 2012-09-05 | kracker | NF | no factor TF: 69-70 | | 2010-06-03 | dukla | NF | no factor TF: 68-69 | | 2010-05-30 | Helmut Zulus | NF | no factor TF: 67-68 | | 2009-03-18 | cdingman | NF | no factor TF: 66-67 | | 2009-03-17 | dmbleess | NF | no factor TF: 65-66 | | 2009-03-16 | nailsss | NF | no factor TF: 64-65 | | 2009-03-11 | Sturle Sunde | NF | no factor TF: 63-64 | | 2004-01-18 | AxelFox | NF | no factor TF: 1-60 | | 2003-08-25 | Gordon Spence | NF | no factor TF: 1-59 |
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