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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 #1100000008680828878 1,749 digits created 2026-03-12

Value

779350436723755163377810236715623228085826677075838451592073754025444905000601580859465064458323196181269238584901588230393811206583247263028240781522069088135969255353274195451969037280713071751967047841772965588149286601205597976092517219609740399042674261525968473841402111612770933937609624694185616991329140205492895868177517499708853386242106392953189356040611860814182841995548924325710310966707285717071302631115257232166644094707132086587239352883730327664097097051594725854716253680029872643222559306596978376004608549122275489682329616794724207691911406605736601891442165872556483427040497082885585324130982169776417792711093248210873725379296074507176026583414272584312878307972125208115739522940366830000348294867753952541955315341482992194271159049463445697493982298949707452489544285666189884485446982758973859358190488099570260973649497860294267366819225300181845367961097391274187542600154308409935648535058741934589874775811709001419904770133676646563155718417726700856838617074610819640032306453157736912057121355019586743869269818640721509233905650934208730372201278489278382511956263747792640050417143570851620094996102735822975501649502357939185723853052540700010605497443586000698958739219300034991323254023096519548344313328571934493122701717357697062944805383959084310841832958662572447937949935813484290585916465625501524467405479611341539140002365661639409238168413503926517703484721761596505433258623558212384256992823491742622539474908585591782783499311364117304137233132692737993813059349585205074835965453505586225803386881652600791591968322457993605672929026666485524818501256466934612936197852114174888338386835138006714849576231759415156133594878639573443464277079938806235303924539363123979055721130988306445095223
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 2,694-digit prime (164 intermediate primes).

Certified number2,694-digit prime
Certificatedownload
Certificate chainshow step 60 of 164

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680828878 --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":1100000008680828878},"decimal":true,"detail":2}}'