Exponent Range: to+ above minimum exponent Output results in HTML format Output results in text-only format Output results in plain-text format Show full details (current assignment, history, LL residues) Include full ECM history (every "NF-ECM" result, slow) Include ancient history logs (1997-2007, slow) Include expired assignments Show software version in historyGet statusMnStatusDetails147543791Composite: proven not-prime with PRP test TFNo factors below 278TF target 277 P-1B1 = 1204000B2 = 1196629830 PRPStatusDateUserResidueShiftTypeBaseVerified2025-02-01GdSA0EE970C7C5CBF07013 HistoryDateUserTypeResult2025-02-01Michael FreedCERTPRP CertificationCERT proof power = 10Proof certified good2025-02-01GdSC-PRPA0EE970C7C5CBF07PRP proof power = 10PRP: VerifiedProof certified good2024-12-03James HeinrichNFno factor from 2^76 to 2^772024-10-25Luke DurantNF-PM1B1=1204000, B2=11966298302024-10-08Luke DurantNFno factor from 2^77 to 2^782024-08-07James HeinrichNFno factor from 2^76 to 2^772024-07-25SRBaseNFno factor from 2^75 to 2^762023-01-31SRBaseNFno factor from 2^74 to 2^752021-11-12SRBaseNFno factor from 2^73 to 2^742017-04-01TheGazManNFno factor from 2^72 to 2^732017-03-16TheGazManNFno factor from 2^71 to 2^722017-03-07TheGazManNFno factor from 2^70 to 2^712017-02-22Claude PortenierNFno factor from 2^69 to 2^702017-02-08JoDuNFno factor from 2^68 to 2^692015-03-09Andrew BNFno factor from 2^67 to 2^682015-03-09aurashiftNFno factor from 2^66 to 2^672013-01-10Team_InspectorNFno factor from 2^65 to 2^662011-01-03sasaki3NFno factor from 2^64 to 2^65