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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.

P · Proven prime
id #1100000004865351905 1,866 digits created 2023-10-24

Value

245200265976404900923126552692228111881130272385287140181442154954945982878036056895477516589558078615469060581760016182899441386498471249986219574441221034307963180425266150242973153479577932918939059088294079866157709161761725996650926329918501491745882969289801953927087596796706786554362141384938680650166285088869611126366934307567939167009197818628408569110321215472968925811547937893193260589012727481634299051794751279790654701257751650435767354496845693678271953236345013236967100809185197437906690464742657617251191925661615351382545586345777176555913953303047639609259754752367666650955341086481183373144475676925008234549902921816639026940892227215410814058106201466664172557131005094396375472555783282201594894068946518574359745589113161250874526605516146756708904073385065099838398799460826515218081115452061380400654581876796569692277488351945601298541168397213728960658874208873183453469011702060823429666653259805310958286810961797453213555152072699809001077437745618943623729451034358664344854915430075373573467444558163755656493095892785972285368728295694463598781994072481739672008340255550603860011919651275835058343379933374846314176295431344452915122044529176557245809597441510152148965794825155070087322664199561596926787639601998109982962205391233990654082376523910170217797246435014184708860653905402207763188058311566752885544704739184603292832985377432536599344507810459788622342096718122991761753313659740105207983225011454162329043802754411979889580691043753379054515321391430000900420698136179729631320504846609965292587331903371634906379532171292726202168490063901392362722804356842937718353225971749514882894323424646514516765366966216955963566733763380678304680378820972011499739253316419632161019726412755533607727239684629473719290459351733756154413109110879781615173095452628565008344319516066273224361063946353025780145971364039
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 2,800-digit prime (308 intermediate primes).

Certified number2,800-digit prime
Certificatedownload
Certificate chainshow step 98 of 308

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004865351905 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000004865351905},"decimal":true,"detail":2}}'