PRP · Probable prime
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
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '36402666053483925811945268263486685949155141979518385552203310593381290533885926389354269798332911203219342042597740006201057050954277824237393154625971937316437890034294272002884286515265687680124071759147449566963087725322029054523154096381985360714611483054522346734399413407042513734031725403188132291381721682038507040135984897225007581813760348371500006898792791592047807076078871064751922356417223794185960036010188348580690148413151528938219036213930066651032540046281408176209305583912244613346486094882567693337814527217691676806219034945655201634047314641312506687541821712045057613790307034609197301888782236969354618127104996139278512723944207608087518977691779655154446584580433034014115888334775704665977765117853265788358607610166683289655311411591513149130236087874965322213789415160707154875992134563725535247526107704369980670191254480000630296173311746889209500783475433305964045841825842649332709503189035328813192617947685701141581202618374533348329188157988793768664098389649849291443849258466103783082938529058456731187897527040930833381559361380776060838624045026583236573709702962228337499311270920007005994023830380806928290418242865136047444938840596701827514131493825219809690364756785963947692982568684068641489011742300997800908381610917562821468405141880635624166337389183338927592735805887833004811042905826937376833' --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":"36402666053483925811945268263486685949155141979518385552203310593381290533885926389354269798332911203219342042597740006201057050954277824237393154625971937316437890034294272002884286515265687680124071759147449566963087725322029054523154096381985360714611483054522346734399413407042513734031725403188132291381721682038507040135984897225007581813760348371500006898792791592047807076078871064751922356417223794185960036010188348580690148413151528938219036213930066651032540046281408176209305583912244613346486094882567693337814527217691676806219034945655201634047314641312506687541821712045057613790307034609197301888782236969354618127104996139278512723944207608087518977691779655154446584580433034014115888334775704665977765117853265788358607610166683289655311411591513149130236087874965322213789415160707154875992134563725535247526107704369980670191254480000630296173311746889209500783475433305964045841825842649332709503189035328813192617947685701141581202618374533348329188157988793768664098389649849291443849258466103783082938529058456731187897527040930833381559361380776060838624045026583236573709702962228337499311270920007005994023830380806928290418242865136047444938840596701827514131493825219809690364756785963947692982568684068641489011742300997800908381610917562821468405141880635624166337389183338927592735805887833004811042905826937376833"},"decimal":false,"detail":2}}'