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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 #1100000008680836395 2,029 digits created 2026-03-12

Value

1129817938164295771420164403834732597529109049385700277709551233800716912683051451077082877869143278423004131472407827820240099187927965195231788718137257520798489799223668785635407395052825600206390403900814428302702572230488792479870834529295902685988252534203473407163783639054881930164890330076344124697574160255388386608533277209342636860853222575130885459807799675689700761472517827428028939696704290393064700247705727241349624988553559525108255635008729353614768830900974041414769537903507624004384619388418282047863545626672059481825303726802097609385314987047464147304668389660571438945572436920666829310744598147184622683742901659541974079496497104462551323773479313805032531607180881205130992856691325133293486100112528437217484123223450089725760383145282999773425940676781853361409512735385593692808502860248619038388098256159979068261395046354479973636487124118131351912091093640353643760810525479002094246612511775243308826119737577173058347078927036496825942674156028124954072296016935492313811052520638248669819860350428831275107068336665975882159313380705289799199890276869228349514341008043071095601375170994893481128390243231524767068573557990086850669445400160562097834410221122118946082145181672228190515844362226348554574583597560222855122619707931118338523003666182284505061596260631887705645473605856079622661453527072084170964212626748486611935684279873336088185089916397826499267616901878901882078368336144281169149808038229719245393226311172395994264731335029576602514881479959722418595630710080124308119460005563030923170075579666841905596654724690744749698342547658928852847352791278355442605514652900477689249701172441862664034412717763567956679348764646419039616322654766285508675712338552003024137647143726385184248755112773980703458911871725268005441222254287867885416856423182462854634037464055135758504144790291780555186144598828951797333104528375148366954614894819071475038938314925901035308034669310796829945453453003621585358781014845023301196079265102258113226137110162394680912664360089389
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 2,571-digit prime (165 intermediate primes).

Certified number2,571-digit prime
Certificatedownload
Certificate chainshow step 36 of 165

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680836395 --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":1100000008680836395},"decimal":true,"detail":2}}'