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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 #1100000009063857269 2,322 digits created 2026-08-09

Value

617770070561981632837832803070589950955136747918074924372099002459940468476375933542657896282735281562212626885519081031947897063476300558224330582869142877169073390661901877657251226794601619267724077471627587226044706576276389472434375188051598267824823152901565276244853475269218968880688516857998284537369778119858249525467194891733936956138501750523751047869141091207801518568384352713757664953206057667909295193831487885890370425348681042536659891218648291163348309972801732858500433897774962502329868260392105928621472368254660274034137531164609501083102610072658349507302045371037258883218455748875872102017468785586276504129534957845138528348374644361605159629039583536067068199123548373004024004469326817005224937295471755352446764167728392525027426531519250838769532078895578221622791611377587447304107975378478666850377943169045921688712302083027848334027301351078209740138198672789497381737867084091418355392215836900997399047077347830230395906568445429440406600777568645299490684539360762027790096686439242739341688498407514023836837710427674246245381566233994957958643221478329261900891018095946525993811728276312315947000378467949831703418013987731520659825718882506482006779610041901175144435179316796471083837549365609853231742435723146774911120806682949498369927683534613620855875865385473204994559326883290091622026155958156259244234875690617455435590925314594170464094763342159079179040537578330244402593793385761234065979405131737114637483356425654424360191656032508836060116109105291266665964306618017200558035569635870628645630613720685884689809672850826349947088261830701781552237817901351278307405449629897214340493386163154021298200350117450932284030665866407458719312555927893823918996977521329550921826575985313990550405514994612597056443387692752461800714146166017433207202826370977382085294411160258319561082102653883176134666314839809981755637506138646553278542971189357989750535270843545814947796070009266475001655639605909095107162599620621111409299691110363760883875462889213365823750923570813594527630342857026456344691091299813034856727060349775170890264625835338418404102042887444426955713536974136310505451960572104869391317787814627785430259621861152888683079994020121766178467520877646597778571553024832500375435014495454600109635964316040688763304543143114398387956002317114842741
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 2,571-digit prime (190 intermediate primes).

Certified number2,571-digit prime
Certificatedownload
Certificate chainshow step 18 of 190

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009063857269 --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":1100000009063857269},"decimal":true,"detail":2}}'