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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 #1100000009053987404 1,928 digits created 2026-08-07

Value

26152569770769795289120231065536447634273471752626603705370692288891203463585299838010501955602439761915786656397697449519112496201561952948061466281147735232109155282658105827986195404381570502341445919318804362875293689995734887297772043813902968628258520641302760909911557428338454816132952121928196089884059968990959700361969910486294908684417936948656106254194508033246122471612091256906118325073764121272307782527113296950018713853556009065649818423953107148506442330921413883784989557136022131523345934641143913267049110897921323572930715706295952579009088730180886728041036226791217229496253145832416232356132858389028279159109171895637148009826788463481122437785359058587565592925339925853074871671512699559050876716326345210282127713342837145097551254617430746606347196812003007188644792180461685548680303825243916772977080290757327688802765036539903652417482950625519574910049992873565927243386796371794661022773980148186811008953025711835630950025178755300463295413570269087737172461282965001514736825541417725076964317752454571089381814748902186539793132135329827788178133864563658467571714368005208636657161865026826726723707796663138682386731619300743644352253489829404137963843205935454066745293614438086021902504374121509460607147948373959399507199175300987004404538091285793815361668760225077521188233342995001588698574291696293014153513773309684569289116391947548342945942975806248173023133874510137647742698487225246314337948870671944195188384915818708355832006916356301248754442423074200783525563925992533015413955877616710145115564396917513185274166854825475619369106133345209387965200778289174334661822909836359161665854847311834707792466169998686490418085225990166032369506603762010990910718353942731671811484267709410993370847481628038600199556266752480786199511944702778578221057672371272517242262761592706485908171553989560728749199213967018751410898939542524174499030743475372435731313649279886157709
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 2,857-digit prime (212 intermediate primes).

Certified number2,857-digit prime
Certificatedownload
Certificate chainshow step 71 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053987404 --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":1100000009053987404},"decimal":true,"detail":2}}'