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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 #1100000009030655388 2,061 digits created 2026-08-01

Value

507842826152625325484159777414041323168842394381882402998265165421011285748631724857891223608131852783740006650604267928578313485036835886199559071600065338412736631781170713630875359294542121615884747497561948188409669576733745983046305237127301900092784679330842142404321304590985141689436492521656039312779353127458922095451584964752818801705418947162909935061235944357740297518511659050480178525907472218631004319668539285196181429352042435670084515271833776691718173733884641394592137461567549456496465089005168587369569539841928165360951994771485233128455226662922569576043747935956043121442640067158569174418443744173210987240205218249044521843132562095298830450368559146208853241600251397614635576480395233346428861977913002909994802673771162090769554814541194663317809780697807305229097101306808890371654940883211701460148289182814207167223648497779123958797065349153627786885646684551266897538381202674045118453784139793854739701265942695670237928601662974695819375644073566879177632931138711055539794600743720639407012134054253928061683507640642783894661848520896243460453969142370333277159744467783609987040126443449843631011300458687530999255572310992604627504971557578391556326220983409480697640433171169737404179171372704904788816294197874444551731239897350778708395379289321745360851997311310610981725478546116113055232783578854471996304656310657729868787459619681197320736706668587212908818701723406878195066126490952608985015393463891742068418035099125584895426048566914562179745416889151903239591711306996302550151620097794426392441744039105391549370230706336312242676683301831725459541699496649276931179567811474096839976610878591504499189271032391109135093809137360492059540241257749201509591635144160905290421027671001477109833905991967203873443531068003810080241572309359038651444703693760578385326635788596744731445530385249251419483299033712475771306353956895439841426032507690501893567469071055274520888841832210379194336553942083791738125021567276542311772868580290990379767152068039564713557089106169370971664837003656423719676445069
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 57 of the certificate chain of a 2,776-digit prime (208 intermediate primes).

Certified number2,776-digit prime
Certificatedownload
Certificate chainshow step 57 of 208

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009030655388 --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":1100000009030655388},"decimal":true,"detail":2}}'