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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 #1100000008680399851 1,862 digits created 2026-03-12

Value

62977839626028052609215653809544018840684342887494515674808239066824876250289915888236843636590332046000237301835217228789767382990978853646363176667421786719132506768201289670134032135578913514126383074047206971786343980192766617902986708313951859903460841652590535027434678693163965968625125079626088665277826855935126340886258414153486386996427087228768050031307418910507615963431189244107615682275028584701412531174748946367450916699910615709202091263760483153688943998322798790544935520406634199941776349737355301565151640715632745660195971470504880493916864756993835939947035515283458117026881305057219925015796115228305877508600313662955458697943179710517930697364097553128304253490204542285937281600982092208182236150106284282621247188431655722725736650452145687380659823196499505735961004265339441031504575735842264699141228991879083790470715104914226327928180915221092624548311261527191288893344621043296570781913764800697047781053279703890430046393219016151205450065039743103351256378057002891265945656874239868862070973115162115436216762154300062287369796274121626176018263863796352863929249252200728187503916354697766604625290322302464446642137983240474606797922338383506843579535058255841863901840743885632620553759514290680785641567896401968326860606999335821726482306454036259306675797664101727700972338767293709432463527533157239349760371362163381593836744610538448984575639631899718785617406803559852385198774247748281875485748556959479186887665027047186912478775302092306267129355518374333133217356153662646531105010167628765470060233235263320806552114086220620685800716998185958626364983595065553456299094604663793908005086539892177492447791389829866588565503935027579329272343075548521584772426084720782155815708356145293349719426785226103130965162399501286291762983160927534205972499998815313691024108840190447861942276030205927302082207413
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 2,029-digit prime (206 intermediate primes).

Certified number2,029-digit prime
Certificatedownload
Certificate chainshow step 17 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680399851 --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":1100000008680399851},"decimal":true,"detail":2}}'