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 '3158405837641571401049279575722873426364008524934919823712160788354926984521102324412858212422012024997202967671560105087254620779146027992163997299619495926516522239547198673334193357438765910442382440821878478687707637727759200830640789681894275069826765175033458764461095904119485362776173953738777947840574370779439531856968639421634914625004607748472129902502862101491749955160694758363642648696120516626075324252202375157577182364596578081919416828088166191830361390938411438068305095904871093775167686420595289358028525339000358200222149847457776347405201435814463501097375121110143233064113914073083006399218978979932544627961795002434677238461331841479154288199272399193942802690577540811795060167061600424685209434373529455459143177490430779023623487537829216024196718915624840229513220664997550453291623498117907582937824755978871194048697399192620984951747484964223808512132573258194427107912537889366687101428603647244300604401928343914131436790326557155805048362651240164338402161704532886038979366925277584329324227967686509886866024550131298239017632364140020103805837224118969902127014939441936720358305230264571516860944757338643696535960259281069345310235837457453682319202498979481339863645472392710461607149024522433622317932509362787141388026908144445284533347618929903462362286469800391' --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":"3158405837641571401049279575722873426364008524934919823712160788354926984521102324412858212422012024997202967671560105087254620779146027992163997299619495926516522239547198673334193357438765910442382440821878478687707637727759200830640789681894275069826765175033458764461095904119485362776173953738777947840574370779439531856968639421634914625004607748472129902502862101491749955160694758363642648696120516626075324252202375157577182364596578081919416828088166191830361390938411438068305095904871093775167686420595289358028525339000358200222149847457776347405201435814463501097375121110143233064113914073083006399218978979932544627961795002434677238461331841479154288199272399193942802690577540811795060167061600424685209434373529455459143177490430779023623487537829216024196718915624840229513220664997550453291623498117907582937824755978871194048697399192620984951747484964223808512132573258194427107912537889366687101428603647244300604401928343914131436790326557155805048362651240164338402161704532886038979366925277584329324227967686509886866024550131298239017632364140020103805837224118969902127014939441936720358305230264571516860944757338643696535960259281069345310235837457453682319202498979481339863645472392710461607149024522433622317932509362787141388026908144445284533347618929903462362286469800391"},"decimal":false,"detail":2}}'