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 statusMnStatusDetails111873053Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 511000B2 = 19256000 PRPStatusDateUserResidueShiftTypeBaseVerified2023-01-08Ruslan Borisov334113917210DA201021993913 HistoryDateUserTypeResult2023-01-08RichD0CERTPRP CertificationCERT proof power = 10Proof certified good2023-01-08Ruslan BorisovC-PRP334113917210DA20PRP proof power = 10PRP: VerifiedProof certified good2022-03-24Ryan PropperNF-PM1B1=511000, B2=192560002021-01-14arpcarNFno factor from 2^76 to 2^772020-11-16J. Gareth "Kit" MoretonNFno factor from 2^75 to 2^762020-11-16J. Gareth "Kit" MoretonNFno factor from 2^74 to 2^752020-06-07Dylan DelgadoNFno factor from 2^73 to 2^742020-04-20SRBaseNFno factor from 2^72 to 2^732019-01-09Niels_Mache_NextcloudNFno factor from 2^71 to 2^722013-10-22ITSNFno factor from 2^70 to 2^712013-10-18ITSNFno factor from 2^69 to 2^702013-10-12Cow_tippingNFno factor from 2^68 to 2^692013-10-06Ryan PropperNFno factor from 2^67 to 2^682013-10-04ANONYMOUSNFno factor from 2^66 to 2^672012-05-31subgeniusNFno factor from 2^65 to 2^662010-09-23OS1NFno factor from 2^64 to 2^652010-05-20RichardNFno factor from 2^63 to 2^64