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 statusMnStatusDetails141476171Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1207000B2 = 1382797680 PRPStatusDateUserResidueShiftTypeBaseVerified2025-04-03GreaseGirl3476FE2E0F6D32AB4008187913 HistoryDateUserTypeResult2025-04-09GunnarLuCERTPRP CertificationCERT proof power = 9Proof certified good2025-04-03GreaseGirlC-PRP3476FE2E0F6D32ABPRP proof power = 9PRP: VerifiedProof certified good2024-09-30Luke DurantNF-PM1B1=1207000, B2=13827976802024-09-20Ryan PropperNFno factor from 2^76 to 2^772024-07-15SRBaseNFno factor from 2^75 to 2^762023-01-21SRBaseNFno factor from 2^74 to 2^752021-11-04SRBaseNFno factor from 2^73 to 2^742020-10-25SRBaseNFno factor from 2^72 to 2^732017-02-05Ilya AlexandrovNFno factor from 2^71 to 2^722017-02-05Ilya AlexandrovNFno factor from 2^70 to 2^712017-02-05Ilya AlexandrovNFno factor from 2^69 to 2^702017-02-05Ilya AlexandrovNFno factor from 2^68 to 2^692016-03-18dbaughNFno factor from 2^67 to 2^682015-02-20BrandonNFno factor from 2^66 to 2^672012-12-04EratosthenesNGNFno factor from 2^65 to 2^662010-12-17RichardNFno factor from 2^64 to 2^652010-06-15Thomas StorkNFno factor from 2^63 to 2^64