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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 #1100000009080170108 2,104 digits created 2026-08-13

Value

1799310377251379204558532047496088242455155709076056288830902162364494443373298040839888867990939875676530845589001327734668114490764236752864409739047323099731934001948658947104549984182071759748774792542649241828044436809853652266793141468385428781647331308939799516165470343904963216765604410567717908326264689336193690274308928122136744526143357034389981365486416445733485567901038212378654642857709762923454438980770594549541514174104292612275466892744110168458828862997452898172873211929742097648657069498561170161278500344709122461578166259675797986955727240954149219568274910495913796213459823314036412283414348933797714560989764747872597257120159370124068084249846438295505855230748959092093450586148062262882738574090727211333353879001502413383564414650903571198486293938402564926218983542527651493857901861506900497725930827905857834507402934731348031288101432379262290202112049107394908157839412914354374536904994209658640996201176298504528781649854989926706395306437549527892052737758002204407450311876786089144406770634292177897148672956189391221942143578683535589376234905304023407378501668312678291204206581787557731146678349771336150134478915464720930308145740187490382970611117029018476881671707346650902851212565208504391960250079257481529826580280921526104809534000901086551319608183078669207940722393151879275560023557447362028961706590258601773251055703150784396307740357012507660355242357198136349401492249755967000517635338446090899972410961412287317233023945770720858070421133174866560344664339620428695695628284948074281968336553928362470763979359023781253463017167680012520441936686772419885753325213259780522137327265362762691226899085837352708854745767780616376234638984180644327777581030105880719797462428504846247524596319799418295631855623803784595858736498474018924383938628538771065879890039132652412460539763008592924901672792539663256239308241956586718101819217065740992097935732796495647700290507592423113767162617236472736733657534495374369217903107803720789788798448979365885012894718125527309657367374354567711766786046993195632469142437194994442295697751861420183
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 2,172-digit prime (170 intermediate primes).

Certified number2,172-digit prime
Certificatedownload
Certificate chainshow step 5 of 170

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080170108 --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":1100000009080170108},"decimal":true,"detail":2}}'