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 statusMnStatusDetails117684823Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 1000000B2 = 552898710 PRPStatusDateUserResidueShiftTypeBaseVerified2024-02-20ky0uraku55A763E339F139BE4785880613 HistoryDateUserTypeResult2024-05-06GregNFno factor from 2^69 to 2^702024-02-20UmbrarianCERTPRP CertificationCERT proof power = 9Proof certified good2024-02-20ky0urakuC-PRP55A763E339F139BEPRP proof power = 9PRP: VerifiedProof certified good2023-04-15Mihai PredaNF-PM1B1=1000000, B2=5528987102022-05-08TheJudgerNFno factor from 2^76 to 2^772021-07-01TheJudgerNFno factor from 2^75 to 2^762021-07-01TheJudgerNFno factor from 2^74 to 2^752019-12-16Niels_Mache_NextcloudNFno factor from 2^73 to 2^742019-12-16Niels_Mache_NextcloudNFno factor from 2^72 to 2^732015-06-29endless_mikeNFno factor from 2^71 to 2^722015-06-29endless_mikeNFno factor from 2^70 to 2^712015-04-25Josh FamestadNFno factor from 2^69 to 2^702015-04-05SMoffatNFno factor from 2^68 to 2^692015-03-22SMoffatNFno factor from 2^67 to 2^682014-12-10ANONYMOUSNFno factor from 2^66 to 2^672012-07-17GornostaevNFno factor from 2^65 to 2^662010-10-12Charles A. MorrisNFno factor from 2^64 to 2^652010-05-12G-ManNFno factor from 2^63 to 2^64