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 statusMnStatusDetails141454583Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 1211000B2 = 1457881920 PRPStatusDateUserResidueShiftTypeBaseVerified2025-07-07curtisc8321EB95CF6AEEE84082030513 HistoryDateUserTypeResult2025-07-07LookASCERTPRP CertificationCERT proof power = 8Proof certified good2025-07-07curtiscC-PRP8321EB95CF6AEEE8PRP proof power = 8PRP: VerifiedProof certified good2024-09-30Luke DurantNF-PM1B1=1211000, B2=14578819202024-09-19Ryan PropperNFno factor from 2^76 to 2^772024-07-16SRBaseNFno factor from 2^75 to 2^762023-01-21SRBaseNFno factor from 2^74 to 2^752021-11-04SRBaseNFno factor from 2^73 to 2^742020-11-19SRBaseNFno factor from 2^72 to 2^732017-05-31d3zorgNFno factor from 2^71 to 2^722017-05-29d3zorgNFno factor from 2^70 to 2^712017-05-26Choi4KANGNFno factor from 2^69 to 2^702017-02-26Choi4KANGNFno factor from 2^68 to 2^692016-03-18dbaughNFno factor from 2^67 to 2^682015-02-19vwflat4NFno factor from 2^66 to 2^672012-12-04SalvetayNFno factor from 2^65 to 2^662010-12-14oodairaNFno factor from 2^64 to 2^652010-06-15Mr-PlonkNFno factor from 2^63 to 2^64