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 statusMnStatusDetails4507FactoredFactorDigitsBitsDate21381209824.3old1601788495573152955269027560717959164395313746881800153173.42021-04-18 15:59:43 PRP CofactorStatusDateUserResidueNumber ofknown factorsShiftTypeBaseVerified (Factored)2017-09-21Oliver KruseB373D0161DEAF0C11013Verified (Factored)2017-10-12kkmrkkblmbrbkB373D0161DEAF0C11285313Verified (Factored)2020-04-17Oliver Kruse8475381DEC6A58BA1128853Verified2021-04-18ThomRuleyPRP_PRP_PRP_PRP_230213Verified2021-04-18ATHPRP_PRP_PRP_PRP_2169013 HistoryDateUserTypeResult2021-04-18ATHP-PRPM4507/21381209/16017884955731529552690275607179591643953137468818001 is a probable prime.2021-04-18ThomRuleyP-PRPM4507/21381209/16017884955731529552690275607179591643953137468818001 is a probable prime.2021-04-18Ryan PropperF-ECMFactor: 16017884955731529552690275607179591643953137468818001 / (ECM curve 1, B1=260000000, B2=3142865025316, Sigma=8475856981473967266)2020-04-17Oliver KruseC-PRPM4507/21381209 : 8475381DEC6A58BAPRP: VerifiedPRP without proof (small exponent)2017-10-12kkmrkkblmbrbkC-PRPM4507/21381209 : B373D0161DEAF0C1PRP: VerifiedPRP without proof (not generated)2017-09-21Oliver KruseC-PRPM4507/21381209 : B373D0161DEAF0C1PRP: VerifiedPRP without proof (not generated)2017-09-21Oliver KruseC-PRPM4507/21381209 : B373D0161DEAF0C1PRP without proof (not generated)