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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 #1100000009122592720 1,672 digits created 2026-08-30

Value

1081973214478019586925880072015894975624758658874904851045363285874481536995305785390671975710949681878311906748764537167846621190568895792550262503565438077546636874360580500803720658364717727671421275931287927578202252156881518662613326998917203184264426722231353259446681980268440247839964923934365903479304425765614425701004604281311780293002326541326639020232121413235036635318826354043766574905897618099698773511784534531024129516805588207338480618872896692548493417590488199629563892269307747559176741099618374623501949324989560102817886441840505868980638379523606026534148687947891360372297773072529566038359852437847216966371055711256678893665714078647345560648843452859209573536325540744343814634502283668264552501335167159769212749702819694152126419575565667281594088865828861727613945357409157889978489198678710941363228839062031597177413058275654573580978321294795141400179904828095276896232780613956141073284653931129062543742657468008889355420330338996634543048945541129382152629350946120707455467684899557228402179154301838805364593614389467933786016864298670082432576142398966555934860780484129645828679445656918855327735897699750972433944206888026248063936854555037025611268547207356152472633980875389638371371915903133393100981164890687916513828030994388796511347652874180588079432210746860961783407129228441155614995649484085424504777359577696984576750216263198412279594747879534318179229107508477898678143501384110760953636016943426981683822378035988730941927926128860652675101712528859560497632186286399900766558318337551542863100383897060579907067310243253789433315113927607998329286318374480144318876791518243931347125499270370992323158210973004849
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,775-digit prime (189 intermediate primes).

Certified number1,775-digit prime
Certificatedownload
Certificate chainshow step 9 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122592720 --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":1100000009122592720},"decimal":true,"detail":2}}'