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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 #1100000009054640687 2,143 digits created 2026-08-08

Value

7981326565202105365183221233673828871579365863452930614431248467687433002427471171518529321856411374697524176930988976256764178224385649117027178985572951406051406487429628766275043157427475611446260376711573901120778903540836507335816707845151688468716163043004424870065142103583501861081275986572802375248228024540777085033767078804213244251740073758540168130544372418903569115175166961463317714710380043142279731111692075423111889513912705534616979363003064208657262169922478247349126717296599664293142380200581626401835445027328345532940459719127342641791823548992354110336935033423759065177526700671725873736891044491893857904344793596702657037346537149178870990880985017726596859842487355406388369141744081664223002090323496816320036160474920813698946318418662148173689296895459351766684054206532193422551841644428436932330110290532713746475597659735815740863274921552680901778958565247751837292994390173135181477957933605694833192153923140122057199870017630778299817424862267041564941076511975028216466203016166858061781593238027392446250254749524964708258448694021028761617510394307999454069831391620413088741283994802281028372988119964255545157547508925811286169846972678997047844381676942934562769108757833788774144224949830155500708698907172653849967192956962704986985989455287986706396129307630106387467348797302254042582871382675320758844520481503181905887483183223418044771736129863799894026703912416540799215416403625265807125703917466203502692290635176197249119154795130327316621224328570071017448162354972768867346940387121080775039789903484532304317331441030532838428531680277604006264165023978921131533254304068721441878658350219616683666278023520460481131944134984831737920009322175547600957266840413260298783998136426249073021820063788733296196907885854516545652341485839527017222171491986467896712348631371031654774114519362988698464192099042490804359368385656510512841355492743282410741938842976309219197563859789130985587520259069638192026207449644641176279038331908551752277718290934811935368051925552651802706845432418439844759445138314274994550826839753230186999621833672407978749602837624117500029946596345019670269
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 2,415-digit prime (186 intermediate primes).

Certified number2,415-digit prime
Certificatedownload
Certificate chainshow step 23 of 186

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054640687 --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":1100000009054640687},"decimal":true,"detail":2}}'