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 '2026674374381622430124440579982204444012166652136091733171400647275463534436782572789922767583877905715752632022937009268707962684417592205810188086066852688973444878719059512302945772566560226750369596875791264831522959258050551334377165978359617319506453197405956971764632411226958498117230903090785429177018742596214526884281898739819192980213616396170118012129288890984951946036581523701463797007494081713126294511524235061724983113258226876857894266688025756627588284104937645294252646953076933437051141798931132367189507471082779368443134944555507348082474683234407851431581401977520932759674686957192406109139662190373226636994993557378043622273997883094613738146841768069655346066416777564373515121904377040464225615403543357692299679' --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":"2026674374381622430124440579982204444012166652136091733171400647275463534436782572789922767583877905715752632022937009268707962684417592205810188086066852688973444878719059512302945772566560226750369596875791264831522959258050551334377165978359617319506453197405956971764632411226958498117230903090785429177018742596214526884281898739819192980213616396170118012129288890984951946036581523701463797007494081713126294511524235061724983113258226876857894266688025756627588284104937645294252646953076933437051141798931132367189507471082779368443134944555507348082474683234407851431581401977520932759674686957192406109139662190373226636994993557378043622273997883094613738146841768069655346066416777564373515121904377040464225615403543357692299679"},"decimal":false,"detail":2}}'