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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 #1100000009074403931 1,805 digits created 2026-08-11

Value

64256741437541400725009075305784458810507821033866608438694006236352942603835545489923051059166924339829351081441512124709584897968735752592452830927614763018561972155760753884853921223454725966390306081319206248310358265264778859383278353227993500522261681877274566419760091512037272617770175700469122625235250871021762742895027094069102073521399845555391495835542501517526293764865804279406392208989086518694496153980317095800426690611536171747564877674072754240023646275504089069793263326986562745396704246356881365872001757307150848691123378210356785427994735366099108022579728554337989106151840469226357533458274190818792437490571931053127943262199976067075904053279365535909721800687172504514593171843876054735676302104293106664113500956534519213349664512273404495766999420793838773938653469845447658246456994529567944524438674867246832241737766413504340301162826915513198947858784356509456730917669487705933362217842785395998887258963069801152789217228571549583639884645600346409164873301877079001409811155694594165738459403031694918277970545532734502839270944073973077707281526863967041766510914880357885442254597394855517510560959231482557983257311341692877854423678086575491473665211524030869981088122550224411243433255698649285952041150620273306452158109746040328003662771379131650125433761257861530534666552681638473472024474627714925592467094436101678369740583751698153456576214869272601283132977544180501113662543313436177642375063314918644151716166855747362649247694621564441719760129859849228798295513494629646787201000638990923469852548749576445622663135869721035608868965527413907684370561026540079648291930426498381735257624395166343632069709831467837867829214034680025343409042967012581603436584029974361585948811011361539716739838560866668726875803520596199977713138767456042643133063
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 2,125-digit prime (156 intermediate primes).

Certified number2,125-digit prime
Certificatedownload
Certificate chainshow step 30 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009074403931 --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":1100000009074403931},"decimal":true,"detail":2}}'