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 statusMnStatusDetails112629379Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 513000B2 = 18956000 PRPStatusDateUserResidueShiftTypeBaseVerified2022-05-24Ruslan BorisovC79CBBFBB34FBCB29221357513 HistoryDateUserTypeResult2022-05-24J Brian WatkinsCERTPRP CertificationCERT proof power = 10Proof certified good2022-05-24Ruslan BorisovC-PRPC79CBBFBB34FBCB2PRP proof power = 10PRP: VerifiedProof certified good2022-03-26Ryan PropperNF-PM1B1=513000, B2=189560002020-12-29arpcarNFno factor from 2^76 to 2^772020-12-02arpcarNFno factor from 2^75 to 2^762020-11-28arpcarNFno factor from 2^74 to 2^752020-06-05La GüiraNFno factor from 2^73 to 2^742020-04-21SRBaseNFno factor from 2^72 to 2^732015-02-22SWL551NFno factor from 2^71 to 2^722015-02-22SWL551NFno factor from 2^70 to 2^712015-02-18La GüiraNFno factor from 2^69 to 2^702015-02-18La GüiraNFno factor from 2^68 to 2^692015-02-18La GüiraNFno factor from 2^67 to 2^682013-10-14PascalBieriNFno factor from 2^66 to 2^672012-06-01sasaki3NFno factor from 2^65 to 2^662010-09-27RichardNFno factor from 2^64 to 2^652010-05-05sannerud.comNFno factor from 2^63 to 2^64