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 statusMnStatusDetails138246529Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1174000B2 = 1146044460 PRPStatusDateUserResidueShiftTypeBaseVerified2025-06-12George Woltman590CD0365E1BC176013 HistoryDateUserTypeResult2025-06-12Philippians-NavinCERTPRP CertificationCERT proof power = 10Proof certified good2025-06-12George WoltmanC-PRP590CD0365E1BC176PRP proof power = 10PRP: VerifiedProof certified good2024-09-19Luke DurantNF-PM1B1=1174000, B2=11460444602024-08-21Ryan PropperNFno factor from 2^76 to 2^772024-07-14SRBaseNFno factor from 2^75 to 2^762023-01-13SRBaseNFno factor from 2^74 to 2^752021-08-02SRBaseNFno factor from 2^73 to 2^742020-10-23SRBaseNFno factor from 2^72 to 2^732016-03-23Mihai PredaNFno factor from 2^71 to 2^722016-03-18dbaughNFno factor from 2^70 to 2^712016-02-25GustavEbbersNFno factor from 2^69 to 2^702016-02-19Ready4PrimeTimeNFno factor from 2^68 to 2^692016-02-15Ready4PrimeTimeNFno factor from 2^67 to 2^682015-02-14RichardNFno factor from 2^66 to 2^672012-11-17561NFno factor from 2^65 to 2^662010-12-02-Anonymous-NFno factor from 2^64 to 2^652010-06-13TheJudgerNFno factor from 2^63 to 2^64