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 '1440504245446867268437126321023857113031076036154458101655677608669941248150560588105652135464626355025169320347531866596830751048820411514480230147173399428616610357832356288732877208208749812706956392700899953488826246373391024584733889955602659398162810342387936067110066288458170457047803576991547120582299694440121961275184414173234651373926986756641472754461418088779754896586956730100715689662288526846864384015023297091016979014002035944030213954266632242463192682013141805315480209078541748431605229346192350098890993442967684307262656760880974488361677826458951794737700052503944681016268902573836329949592261237711533641707699960956099319001974413444845591654781497788744826600246342101215474049597681387677633895395649382695576331472871531478303447372741771585762407022970814930156494657349603580121610705250542901172694347356995926703257906146537000267443660026489' --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":"1440504245446867268437126321023857113031076036154458101655677608669941248150560588105652135464626355025169320347531866596830751048820411514480230147173399428616610357832356288732877208208749812706956392700899953488826246373391024584733889955602659398162810342387936067110066288458170457047803576991547120582299694440121961275184414173234651373926986756641472754461418088779754896586956730100715689662288526846864384015023297091016979014002035944030213954266632242463192682013141805315480209078541748431605229346192350098890993442967684307262656760880974488361677826458951794737700052503944681016268902573836329949592261237711533641707699960956099319001974413444845591654781497788744826600246342101215474049597681387677633895395649382695576331472871531478303447372741771585762407022970814930156494657349603580121610705250542901172694347356995926703257906146537000267443660026489"},"decimal":false,"detail":2}}'