74×10²⁵⁶+619 = 8(2)₂₅₅9_<257> = 7 × 51721 × 1024997 × 1723219 × 794565731581_<12> × 6738588403024598631886182038522773_<34> × 364794756321084010479414495533122724947639_<42> × 20947973414539974117086911446308436221836303301127320719424964782587_<68> × 3142474964508373817542737467321244986573170870804283297773612344256784781043917098761_<85> (Jason Parker-Burlingham / GMP-ECM for P34 / January 2, 2021 2021 年 1 月 2 日) (Ignacio Santos / GMP-ECM B1=3000000 for P42 / August 9, 2024 2024 年 8 月 9 日) (Bob Backstrom / CADO-NFS for P68 x P85 / January 12, 2025 2025 年 1 月 12 日)