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 statusMnStatusDetails124162039Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 2000000B2 = 1483372800 PRPStatusDateUserResidueShiftTypeBaseVerified2024-07-09Luke Durant7B3F160D7C2D2ECB013 HistoryDateUserTypeResult2024-07-10George WoltmanCERTPRP CertificationCERT proof power = 9Proof certified good2024-07-09Luke DurantC-PRP7B3F160D7C2D2ECBPRP proof power = 9PRP: VerifiedProof certified good2024-06-03Luke DurantNF-PM1B1=2000000, B2=14833728002022-07-03TheJudgerNFno factor from 2^76 to 2^772022-07-03TheJudgerNFno factor from 2^75 to 2^762022-06-09Yves de WandelaarNFno factor from 2^74 to 2^752021-07-06SRBaseNFno factor from 2^73 to 2^742020-10-28SRBaseNFno factor from 2^72 to 2^732015-09-21La GüiraNFno factor from 2^71 to 2^722015-09-07SMoffatNFno factor from 2^70 to 2^712015-06-22Judge HaleNFno factor from 2^69 to 2^702015-06-22Judge HaleNFno factor from 2^68 to 2^692015-06-22Judge HaleNFno factor from 2^67 to 2^682014-12-19vwflat4NFno factor from 2^66 to 2^672012-09-01OS1NFno factor from 2^65 to 2^662010-10-28HubbaBubbaNFno factor from 2^64 to 2^652010-05-30RichardNFno factor from 2^63 to 2^64