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 statusMnStatusDetails139854509Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1150000B2 = 938547390 PRPStatusDateUserResidueShiftTypeBaseVerified2025-09-04curtisc27BBE93229B992604560601713 HistoryDateUserTypeResult2025-09-04lozcsCERTPRP CertificationCERT proof power = 8Proof certified good2025-09-04curtiscC-PRP27BBE93229B99260PRP proof power = 8PRP: VerifiedProof certified good2024-09-24Luke DurantNF-PM1B1=1150000, B2=9385473902024-08-19Luke DurantNFno factor from 2^76 to 2^772024-07-23SRBaseNFno factor from 2^75 to 2^762024-07-10Joe S.NFno factor from 2^69 to 2^702024-07-10Joe S.NFno factor from 2^68 to 2^692023-01-16SRBaseNFno factor from 2^74 to 2^752021-08-04SRBaseNFno factor from 2^73 to 2^742020-10-23SRBaseNFno factor from 2^72 to 2^732017-08-02Earle LoweNFno factor from 2^71 to 2^722016-09-02DerekNFno factor from 2^70 to 2^712016-09-01DerekNFno factor from 2^69 to 2^702016-09-01DerekNFno factor from 2^68 to 2^692016-07-08proxy2222NFno factor from 2^67 to 2^682015-02-13GrunwalderGIMPNFno factor from 2^66 to 2^672012-11-25EratosthenesNGNFno factor from 2^65 to 2^662010-12-11RichardNFno factor from 2^64 to 2^652010-06-13sasaki3NFno factor from 2^63 to 2^64