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 statusMnStatusDetails167729567Composite: proven not-prime with PRP test TFNo factors below 276TF target 278 P-1B1 = 1478000B2 = 1742713896 PRPStatusDateUserResidueShiftTypeBaseVerified2024-09-04curtisc862A958A111B932F8608094513 HistoryDateUserTypeResult2024-09-06Luke DurantCERTPRP CertificationCERT proof power = 8Proof certified good2024-09-04curtiscC-PRP862A958A111B932FPRP proof power = 8PRP: VerifiedProof certified good2024-08-07Luke DurantNF-PM1B1=1478000, B2=17427138962018-07-05Oliver KruseNFno factor from 2^71 to 2^762018-04-11David HruskaNFno factor from 2^70 to 2^712018-02-20ZenghuiNFno factor from 2^69 to 2^702017-04-25XolotlNFno factor from 2^68 to 2^692016-06-03Dave BellNFno factor from 2^67 to 2^682015-06-02vwflat4NFno factor from 2^66 to 2^672013-03-27MAPSNFno factor from 2^65 to 2^662011-02-17ZeBigGregNFno factor from 2^64 to 2^652010-07-07Mr-PlonkNFno factor from 2^63 to 2^64