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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 #1100000009060721974 2,272 digits created 2026-08-09

Value

1181544857130501668201758017269610837698672326620835908598746636532715597173597197448493817384611230901372510323169786801981276579355410207494454080893246800113452435900060882857117376275796981208306918624054628598744101866477574417517462741566264981255208380019523558572658212226929401633773048963552916243760191367747545912723975574556719738593404964681265344154420939188905458984461239911399983625651345526082207756840766552406716155124259976739852075347391629411393977529500332272774465797511541620327674517595853293233350789889237525332639910687048235102337066983088185480369834203702456459230027748747974141531675852740853888209801041168742383466350346346878649654666597473929718455896740763500167028180459606328862425812761385197797986043488528082984864469947245994161529718705476637245815795526202746639297716432653165448704803048862381849546474621005184538802557162156164452819828340281070446756101807290428378566339484863608032450151542573125509231606994037633074027318272655531874397318139932998420310226476066783731707802792472213265270734467132219050124359744061254271941979925434487348453008179498874265476138599828429791960966339796836194031924839182498424723581034242420516987652867352011880959192659410227333917839185872641013922863934267981639343604102960739553648259299550168034065744047473024729019754296463575462852790492550865075647037878265999396221671161593909988353358933221467913511106701735595371246964087646224812868878073402987736366156290938517052821512820107163720557793657559580959325653582262386533327386334284892899326824151015642950632355303931862527224277016070059019426843847109489480959852226102048021650288753249706068308625213176526858478778901491727460843009191374960453481620084630279992069392794885753646974784946815214949784416273345846029433092864463476750173375624523007315200483933802452147266280300949498261532920511171794125812882701703681399753189721635494922615166259036281399375772894161219825390824726486716928724003566353639096181346994056182028589241880917572178254882411644227532605785851495975741059164801860911940115841636374450046149477931299328082643663677856086060154498879817167077141918740891887518330859744381704174975136077019548010899756659965667614767618839782022900744776643075595076773790245371847591041
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 2,557-digit prime (187 intermediate primes).

Certified number2,557-digit prime
Certificatedownload
Certificate chainshow step 23 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009060721974 --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":1100000009060721974},"decimal":true,"detail":2}}'