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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 #1100000009058004546 2,244 digits created 2026-08-08

Value

271659637813962385851137391017490194346430000807464317741140059393990630898870807240507920506225308159774552602222504545310021755252196341641629395850656142518960166947967503482931209823269161100401113164319274741982187395148988924480191099917087654048143023068771491549294937598240946553928336335693349290036923114053946629653803292028985854274313075560584924031814860150884704211517478003830971632083653467037774486240831547290641446487479344529064152298776288944286715362755391487988789333470238552443120595454915368107869858619131952632630765954917441896132813235180585969178821529632336564185658031720252658132563187033056594538925581888069056028785927536805077276929772276100072942017907685617488696950695329448546987119711723176659955289529512461876990742404262736774589476850858703623492251341520276218744646712670774586696261173575969676056537421250347116142617317419935965451559777259322036486781150468501930328389351512528923590029554961455032363432471025788783303377220015775392901561148492737645163289961656257849908861514248667549693646240630619370250319200881820983680409452009029856734142354295875745237329524807045193243874479232064844673559434313222923984018947863754827090627283027928622677598501445355810243076447466871566515123614599601150131844478738580753415631925771543926221344342664602170043707829020550914488868065214201868285083520638324998184807973995376638215694057797020707629540453021084893038328952235454617647058130902340561581752050039560715309918431360042015723963538294099155183695487142697305078306230983089606073778723657455546835129191017819377061875091584065391861033645860579528224683318473984094153946301587262659392170861143240109757733657538767240269861874257791027815582162296420921583504953312069787377402404622514916082643296756584910658741180382238290461567738910918616920745985022757987693650227137391436790675662950325545504005743313311319939261773619882349278238889162484989025832728365415155152180172698755642026191451000232604721016106884319480308229966713150789720447759793603946238250585823430061859074711753548372207014099354233913558210472443718222118912650508659429537285520767603313259861880398017091212887142593489712673985960119990941140599446179184894790170045766009358786119385047
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 2,255-digit prime (166 intermediate primes).

Certified number2,255-digit prime
Certificatedownload
Certificate chainshow step 2 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058004546 --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":1100000009058004546},"decimal":true,"detail":2}}'