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 statusMnStatusDetails139045321Composite: proven not-prime with PRP test TFNo factors below 277TF target 277 P-1B1 = 737000B2 = 36240120 PRPStatusDateUserResidueShiftTypeBaseVerified2025-04-17S00030754EF1360DFB8AC3013 HistoryDateUserTypeResult2025-04-17Khurshid SuyunovCERTPRP CertificationCERT proof power = 9Proof certified good2025-04-17S00030C-PRP754EF1360DFB8AC3PRP proof power = 9PRP: VerifiedProof certified good2024-08-26Brent GoebelNFno factor from 2^76 to 2^772024-07-13SRBaseNFno factor from 2^75 to 2^762024-06-23tscNF-PM1B1=737000, B2=362401202023-01-15SRBaseNFno factor from 2^74 to 2^752021-08-02SRBaseNFno factor from 2^73 to 2^742020-11-16SRBaseNFno factor from 2^72 to 2^732016-08-21arnaudNFno factor from 2^71 to 2^722016-08-21Andrew BNFno factor from 2^70 to 2^712016-08-19DerekNFno factor from 2^69 to 2^702016-08-18AnrodionNFno factor from 2^68 to 2^692016-08-13proxy2222NFno factor from 2^67 to 2^682015-02-15RichardNFno factor from 2^66 to 2^672012-11-21Mr-PlonkNFno factor from 2^65 to 2^662010-12-05Thomas StorkNFno factor from 2^64 to 2^652010-06-23RichardNFno factor from 2^63 to 2^64