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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 #1100000008674994808 2,042 digits created 2026-03-09

Value

66408664404084248915629717231305548113227196653631502866429470094858544733143462498056494652801076858054007670344444047112862629247238035875082762864749301272719004219574872566803405338430795871405501722839583219923640708246749599810958007110855516568506126519766763110241496439157404103660732258221001940747920955423048189892428542352862904247694948088437477735990655271219360909001407440073650763597609239078374933383331307821141698762850467502139726650240033966360782657033362941055795908093528745246758287848568013353476596610345591701742260252486107286042474702454600187069883291176755900125554035513878680213942331892009792747460092342406013608483245949189565085123506066273861005014035715425260846719522555989970998271292776323612680752554425258334279622347159190162386680069872435650926866562644735176860118741314596636592813592376881408560748998720512506717379626503104210106257721808726281858579438694875871533433792870350259718582062629691233383773531728072715082380948995432725545921148293286380199742750447995320833185959384100140672056785177160293426681375183461960731249981502334438199250690949128326257989680189014009754593875543760845500853035813386107576084994755324102162925766841194286341805816068534531478936767693163321676521952549493496091038431237648561248143050484763356922301661681578970337251805358579042739552272477682346567934951380146686772155180399321391726742639897510930404566031468253210353666510411577575105397680470207897618550841114799087990287218585901407111522142346397270519997191534269906903567579378292294064132837117961000078995905455929837300337943348424900079170379486459795637421273223821484468207882483108924405882724939716312231158860058798540972316095545874169376359867106099806281978325614479854290761910308668797614642532220935838503126518129655500673648777966880651138474848718030443960787759354762294447577208645392001719878637426490438768143937500455504894882665237781201680676705214319904061166803768062419425426104716616263460216995062056732691194116242504951550897214527571066669032077
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 56 of the certificate chain of a 2,906-digit prime (166 intermediate primes).

Certified number2,906-digit prime
Certificatedownload
Certificate chainshow step 56 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008674994808 --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":1100000008674994808},"decimal":true,"detail":2}}'