U · Untested
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
Switch to Database id to look a number up by its stored id.
Reading never stores anything; use Create to add a number to the database.
See the expression syntax & functions reference.
Is factor of
Report factors
Paste anything - plain factors, a GMP-ECM run, a factor list. Every number found is checked for divisibility here; the ones that divide are submitted.
From the command linefdb · curl
fdb
fdb number '164998449290086203308148772596400549853969806588182072951408441696940950513067032671988004716525944738010993534382028090184700490750939844645916565326943158137996699583834217780916888523776689194661796189126733929731099545163813941848339027142661069430365054609243069358123512760952615527267663529201902760278521729654047023165280718054707116256882263523682779538330151909335849980928706806784643818154322504153675118304569380316317982764404491307588031079057284390143646908774921062342830886132439162012376019336144226327439788960617555942657431963983913260460789901297787985819801017034339394917815531245022087416205237726417060735899106966212299217672066567379562759040670431812426500453778782171885879346779363711213309776162600330668808826534559536857885547286616486793748517534800868406002243878968826853763682293184701836729018895523829336409122630693735701186948909997736324879737276158793580824814266392703984767201339267743422065092484923176971747514710094242417016465572104929265035122144869700454256522902240899424558140933738478189643385998932491733967796148601817704371736051909218418270871740042494304861034696140097192486578275280533857914240119439611471572629613814948248192052835487730461194060925724439548381609886042628087745260145843900757792627992721857180016725104968696620257763699950237637226689279337755625523762542399364121950423494308087226902216897093817370900041114380826091877354013837064296351303299352479969178092833900941196751780838682754021017553907381013560733752492342702065247838601038621637740831320077030920645285045312010823068445588860793604649859059604337567579699254760848307280442500425964474500805155045863515678514540025604545212172337217956663379597679486260563097193954786937253811897545607748715021449407584318965205812719420564913958578238932261870791388640583732432602063809332149866754845823761753341142280754369344745180440367504807860115415455602814420396831635278418249181853817995961441098677091388457683425741898729912273899289233267281397527085243595359789692206236562201151490718717969974309410107483194134327026137995535326152119645813346009096000194077009935676897018596467338819781940904673199019923451004051151724148297605018485519331749870293601299496900283268924654919719994419294930888446344980023907394431401015327437486071279992055294262828571344840663428822953321993234686392791391411195153890009938315382655428849909036892925173903942951371722080513529639171825424099111051296999155309885670877983927752388000591823963508154979' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"164998449290086203308148772596400549853969806588182072951408441696940950513067032671988004716525944738010993534382028090184700490750939844645916565326943158137996699583834217780916888523776689194661796189126733929731099545163813941848339027142661069430365054609243069358123512760952615527267663529201902760278521729654047023165280718054707116256882263523682779538330151909335849980928706806784643818154322504153675118304569380316317982764404491307588031079057284390143646908774921062342830886132439162012376019336144226327439788960617555942657431963983913260460789901297787985819801017034339394917815531245022087416205237726417060735899106966212299217672066567379562759040670431812426500453778782171885879346779363711213309776162600330668808826534559536857885547286616486793748517534800868406002243878968826853763682293184701836729018895523829336409122630693735701186948909997736324879737276158793580824814266392703984767201339267743422065092484923176971747514710094242417016465572104929265035122144869700454256522902240899424558140933738478189643385998932491733967796148601817704371736051909218418270871740042494304861034696140097192486578275280533857914240119439611471572629613814948248192052835487730461194060925724439548381609886042628087745260145843900757792627992721857180016725104968696620257763699950237637226689279337755625523762542399364121950423494308087226902216897093817370900041114380826091877354013837064296351303299352479969178092833900941196751780838682754021017553907381013560733752492342702065247838601038621637740831320077030920645285045312010823068445588860793604649859059604337567579699254760848307280442500425964474500805155045863515678514540025604545212172337217956663379597679486260563097193954786937253811897545607748715021449407584318965205812719420564913958578238932261870791388640583732432602063809332149866754845823761753341142280754369344745180440367504807860115415455602814420396831635278418249181853817995961441098677091388457683425741898729912273899289233267281397527085243595359789692206236562201151490718717969974309410107483194134327026137995535326152119645813346009096000194077009935676897018596467338819781940904673199019923451004051151724148297605018485519331749870293601299496900283268924654919719994419294930888446344980023907394431401015327437486071279992055294262828571344840663428822953321993234686392791391411195153890009938315382655428849909036892925173903942951371722080513529639171825424099111051296999155309885670877983927752388000591823963508154979"},"decimal":false,"detail":2}}'