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 statusMnStatusDetails115001629Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 517000B2 = 18706650 PRPStatusDateUserResidueShiftTypeBaseVerified2023-11-29S00030616D989E0272AB6E70103313 HistoryDateUserTypeResult2024-06-23James HeinrichNFno factor from 2^72 to 2^732023-11-29Will KCERTPRP CertificationCERT proof power = 8Proof certified good2023-11-29S00030C-PRP616D989E0272AB6EPRP proof power = 8PRP: VerifiedProof certified good2022-10-13Jwb52zNF-PM1B1=517000, B2=187066502021-07-05Daniel Tobias Johansen LanghoffNFno factor from 2^76 to 2^772021-05-28TheJudgerNFno factor from 2^75 to 2^762020-10-30La GüiraNFno factor from 2^74 to 2^752020-09-23TheGazManNFno factor from 2^73 to 2^742019-05-03ConductorNFno factor from 2^72 to 2^732013-08-17Thomas NNFno factor from 2^71 to 2^722013-08-17Thomas NNFno factor from 2^70 to 2^712013-08-17Thomas NNFno factor from 2^69 to 2^702013-08-17Thomas NNFno factor from 2^68 to 2^692013-08-17Thomas NNFno factor from 2^66 to 2^682012-06-17bcp19NFno factor from 2^65 to 2^662010-10-04Torchwood InstituteNFno factor from 2^64 to 2^652010-05-08smokyNFno factor from 2^63 to 2^64