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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 #1100000009053828741 1,854 digits created 2026-08-07

Value

991237807371216320153609820136238552793757744968843601624291001893414025011654228642458704125859416307951899268676676362990025847251471248704485194994161045819552573886942692726159119735586501615524888847747288294003643248902184563803365406193112967110155469281532224212275880244718073082922744077989213777818527853409309007756235825732537157511180728946083440864510441491083850213522274602361462018118154110149334054092610264422655769600840234644961706086772883776800622089226750060250152362789323379001784238248714064807469244402341041965204443174837060678918216734037981273085373192954441775762802395641268532993069063276726303920310673523140325623417695876118512442125471983566459138937640649856057930405043906205863304577882148053938056669061214213799390413274585077775379169693162438211373835005755773937227870617090379372157938912216043833746257070936240097923036660025996327151067160637245136238271885753900968506361988932174124675948579876743272186685191577178285790893071112917670777731238713322316401076507350580247709823201255014568139846003667413783964678405564021072351820204419671907204660823715404021642871025949897153963787784055366184388822825021191323431485614797452966090924130237039946592148133318580840861145252089014526212575345997757477290254858389966484529483948592440915422636698022128460245804972521569590073399228478328864557434216921344549990660300891826388174374770608434797865410202946278387117971075630539436123964912403859957628237588975157623916202223132616053780596227465339433783611885344924426608001803207891984926421458618795252660870826187498781286691173810507483291897734799683750877424635732466817664477601683607102791354930387660233863186041631285601964083196200443832613435058365299507920131580181074130991602399257141975887915486968138442260222583095161982798777169315210636585301445480875288938276667185480983
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,577-digit prime (194 intermediate primes).

Certified number2,577-digit prime
Certificatedownload
Certificate chainshow step 61 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053828741 --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":1100000009053828741},"decimal":true,"detail":2}}'