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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 #1100000008787270105 1,673 digits created 2026-05-03

Value

61503666252526061270446689500001499490162868664489686854064636775556964530235960593607894034787498528981946370245207788303681164142957726478487295922601903198302654092212329544303509062319237421237304367770148125618535871110897748464755650336704698660024822052224502206632704688788113054665924379810475745131390159212177890592989227977246276160826534821833834345948993706336218199781271682123748768919542296068256576525372086176392883392904897693663988165704179686882573425014776040301092186899706116235909660238802611270913383194620755759541401402800788857614514739434182971312559248678468242767324459109485057985659100243913248095386855376033555128152231085908974962821924723704957910939955639224770756307464689119667980017521820832451814089101706452193379987532036728680798462366927212457450425930736055970938995742563886226292217254752886200300398557066863054062739204414547586928093292058143410868399395087061724846320685501926748172786486338479247333355269599195316027263731257202896469957191518776741558931308432286868388790116889902454120203311231927413091401037061374271035250875537456244124943396633377840459149726800970977183509326315318548445723664231780810016791409252510985338434417673961463570792575088355269286996172201820536781545911490805383818622086471341169458556386768049629956202872731995840590084560331403877012173449289476493548577071167041003004817890517597256788840887944394418447598879683502788456714514120800934269109767895949932711100000850550692640006378530611519062489379617926467161336304857255750988404699851412766532793075780059124428609356177616238699626115641637872426927380217092170738203438475308782477034186275521526549259831657034599
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 3,147-digit prime (192 intermediate primes).

Certified number3,147-digit prime
Certificatedownload
Certificate chainshow step 98 of 192

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008787270105 --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":1100000008787270105},"decimal":true,"detail":2}}'