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 statusMnStatusDetails133259911Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 650000B2 = 30558330 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-25Luke Durant84C605E66BAFB8BB013 HistoryDateUserTypeResult2024-09-25Luke DurantCERTPRP CertificationCERT proof power = 9Proof certified good2024-09-25Luke DurantC-PRP84C605E66BAFB8BBPRP proof power = 9PRP: VerifiedProof certified good2024-08-28Ryan PropperNF-PM1B1=650000, B2=305583302023-09-14MirraNFno factor from 2^76 to 2^772023-08-31rushynNFno factor from 2^75 to 2^762022-12-30SRBaseNFno factor from 2^74 to 2^752021-07-27SRBaseNFno factor from 2^73 to 2^742020-10-22SRBaseNFno factor from 2^72 to 2^732016-07-25DerekNFno factor from 2^71 to 2^722016-07-25DerekNFno factor from 2^70 to 2^712016-02-13Andreas_TruetschNFno factor from 2^69 to 2^702016-01-21Andreas_TruetschNFno factor from 2^68 to 2^692016-01-08kevshawNFno factor from 2^67 to 2^682015-01-21aurashiftNFno factor from 2^66 to 2^672012-10-20KoekieNFno factor from 2^65 to 2^662010-11-19sasaki3NFno factor from 2^64 to 2^652010-06-05ekrummeNFno factor from 2^63 to 2^64