Exponent Range: to+ above minimum exponent Include full ECM history (every "NF-ECM" result, slow) Include expired assignments Show software version in historyGet statusMnDetails332277791Composite: proven not-prime with PRP testNo factors below 281TF target 281P-1B1 = 2000000B2 = 227625300PRPStatusProofDateUserResidueShiftTypeBaseVerifiedCertified GoodPower=102026-02-12M. R. Mayer5473F3E564D972B419292265113HistoryDateUserTypeResult2026-02-12vngntCERTProof certified good2026-02-12M. R. MayerC-PRP5473F3E564D972B4 Proof Certified Good Proof Power: 102023-10-18James HeinrichNFno factor TF: 67-682023-04-13JacobZNF-PM1B1=2000000, B2=2276253002020-11-09Siarhei P. 😜NFno factor TF: 80-812020-11-09Siarhei P. 😜NFno factor TF: 79-802020-11-09Siarhei P. 😜NFno factor TF: 78-792020-11-09Siarhei P. 😜NFno factor TF: 77-782016-06-29Team_InspectorNFno factor TF: 76-772014-04-07Team_InspectorNFno factor TF: 75-762013-09-01Team_InspectorNFno factor TF: 74-752013-02-06Team_InspectorNFno factor TF: 73-742012-04-05Team_InspectorNFno factor TF: 72-732011-11-04Grant McCrackenNFno factor TF: 71-722011-07-20Grant McCrackenNFno factor TF: 70-712010-05-21Grant McCrackenNFno factor TF: 69-702009-07-14SunfishNFno factor TF: 68-69