Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332803843Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 4305000B2 = 4305000PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=82021-01-24Chelle98481C9EC0F507EC9174958413HistoryDateUserTypeResult2024-06-05LaurVNFno factor TF: 71-722023-03-26Mark RoseNFno factor TF: 80-812023-03-19Mark RoseNFno factor TF: 79-802023-03-01Mark RoseNFno factor TF: 78-792021-01-25Wisby-PrimeCERTProof certified good2021-01-24ChelleC-PRP98481C9EC0F507EC Proof Certified Good Proof Power: 82019-12-05Khurshid SuyunovNF-PM1B1=43050002019-11-06lobsterfordinnerNFno factor TF: 76-772019-11-06lobsterfordinnerNFno factor TF: 77-782019-11-06lobsterfordinnerNFno factor TF: 75-762016-07-22bayanneNFno factor TF: 74-752015-07-19srow7NFno factor TF: 73-742015-05-11Jacques MOLNENFno factor TF: 72-732013-03-09Architects CubedNFno factor TF: 71-722012-10-12krackerNFno factor TF: 70-712012-07-19LaurVNFno factor TF: 69-702012-04-13LaurVNFno factor TF: 68-692012-03-27LaurVNFno factor TF: 67-682010-11-01Architects CubedNFno factor TF: 66-67