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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 #1100000010597996981 2,663 digits created 2026-10-06

Value

43207369894918365451997599153893793394593839357412895783591494381365628308525227878849888212104019365268259196991727098358102062114720113894801147247032857515300213310746456485861830459110901814162134220042143671969448650459639908369651812648139311337403972747825876670525648411873718636359415980075488270763385135879467485404734612579602819887544875095956023131344165680925361145622001880082981870179762808718744303763561991957955397987527321612650184547566558041962374878077635992244296257036961741331268596760058817091081069023929678728316501498291939273172836708879218317894643827811730523527154142162478556692076797895460415655471882871717604165085934607532453750685063045616625766693508953872314539308725622309750529911076937129249587028860699611861982669675547089827909568452017019674059069721394530533058993928904530828160161796496869729553381413175052556454899199472980491101799919913087270462458563526600397171418233135337516966482093036868051501192155456197625896564508081175941644601755177916788079910677514065493804644650820972437900092429732127832248557441732509959257190450109862159510044743262136577026633853133897510079198614372281916636327128019908525471984605151029629480012693477008934449831981452548121792970957957145150513882373501289837166078750698032726035012912778829377221401181554874507550739283633839096960217262642186660876025183474421913228434598147818930927185674378345884295186339514803353419466899503623081204597564566844675708300772192037719354903746010374066224640261348445264493550602736247413669392684006746012575102361260754729931491341745467598376104530500095571604638390713641599449110656446048904882374755076095650153836791510151119277437144154441402963535871669368568568279735181641634436253289890256139050924943184767314920243462336231193166015423533010299958340637254129521597467303020963058118295442113605533324245632545040860893087826384715918047988170786162416065484620241648041438012199865367332324508593535508443241381124852371462480099123750113074001493575966125638980258003906707405407231957896341490744957525703972579524428922329834500061804144818676634550625365514807903601893596522449719908828417017137120115795792334875738586777363753310502786554668059146412438381005508602197224571883699802580320726312592755662863220183246682906124372486888844144002612924910590425159761186244196520239351859967339284233416771083007422676351457301395826292748302852534705396941150818150669521495060450889188107433325623839952670722699993254040525797137203913804821071874492326247369204765268837049618294628381399448806019836653507919297015948005106761849604954706132480076966580426995924242550750308724473886881593543828109
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 51 of the certificate chain of a 3,200-digit prime (318 intermediate primes).

Certified number3,200-digit prime
Certificatedownload
Certificate chainshow step 51 of 318

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000010597996981 --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":1100000010597996981},"decimal":true,"detail":2}}'