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 statusMnStatusDetails116625347Composite: proven not-prime with PRP test TFNo factors below 277TF target 276 P-1B1 = 1001000B2 = 1349725650 PRPStatusDateUserResidueShiftTypeBaseVerified2024-03-01geowA021FEE8DCF8C301013Verified2025-03-15yphysicsA021FEE8DCF8C3011029379513 HistoryDateUserTypeResult2025-03-15InfinitesimalCERTPRP CertificationCERT proof power = 10Proof certified good2025-03-15yphysicsC-PRPA021FEE8DCF8C301PRP proof power = 10PRP: VerifiedProof certified good2024-03-01Grant McCrackenCERTPRP CertificationCERT proof power = 8Proof certified good2024-03-01geowC-PRPA021FEE8DCF8C301PRP proof power = 8PRP: VerifiedProof certified good2022-10-16Simon JosefssonNF-PM1B1=1001000, B2=13497256502022-04-19TheJudgerNFno factor from 2^76 to 2^772021-06-15Richard ThomasNFno factor from 2^75 to 2^762021-06-15Richard ThomasNFno factor from 2^74 to 2^752021-02-19bayanneNFno factor from 2^73 to 2^742020-04-26SRBaseNFno factor from 2^72 to 2^732015-03-10endless_mikeNFno factor from 2^71 to 2^722015-03-10endless_mikeNFno factor from 2^70 to 2^712015-03-10endless_mikeNFno factor from 2^69 to 2^702015-03-10endless_mikeNFno factor from 2^68 to 2^692015-03-03Andrew BNFno factor from 2^67 to 2^682014-12-05vwflat4NFno factor from 2^66 to 2^672012-06-29sasaki3NFno factor from 2^65 to 2^662010-10-09Charles A. MorrisNFno factor from 2^64 to 2^652010-05-10Mr-PlonkNFno factor from 2^63 to 2^64