| 80671537 | Composite: proven not-prime with Lucas-Lehmer test No factors below 276 TF target 275 |
| P-1 | | B1 = | 8950000 | | B2 = | 2388583890 |
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| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2018-09-03 | curtisc | B436137FE42ABFE0 | 35538820 | Windows Service,Prime95,v28.7,build 1 | | Verified | 2026-04-22 | Greg | B436137FE42ABFE0 | 0 | Linux64,PRPLL,v0.15 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-04-22 | Greg | C-LL | B436137FE42ABFE0 | | 2026-04-22 | lycorn | NF-PM1 | B1=8950000, B2=2388583890 | | 2025-10-24 | Kyle Askine | NF | no factor TF: 75-76 | | 2018-09-03 | curtisc | C-LL | B436137FE42ABFE0 | | 2017-02-13 | Smok_bmv | NF-PM1 | B1=675000, B2=12487500 | | 2016-10-27 | -anonymous- | NF | no factor TF: 74-75 | | 2016-10-27 | -anonymous- | NF | no factor TF: 73-74 | | 2016-10-27 | -anonymous- | NF | no factor TF: 72-73 | | 2014-02-10 | NR | NF | no factor TF: 71-72 | | 2014-02-10 | NR | NF | no factor TF: 70-71 | | 2013-02-02 | Bold_Seeker | NF | no factor TF: 69-70 | | 2013-01-30 | Bold_Seeker | NF | no factor TF: 68-69 | | 2013-01-28 | Bold_Seeker | NF | no factor TF: 67-68 | | 2013-01-26 | phoenicis | NF | no factor TF: 66-67 | | 2011-08-09 | Carsten Kossendey | NF | no factor TF: 65-66 | | 2010-12-10 | Architects Cubed | NF | no factor TF: 64-65 |
|
