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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 #1100000008678590910 1,773 digits created 2026-03-11

Value

272061761820825134637057738486612727995673386185190581825091166877722952758210163336635048345745545427977961481743461477853631660970687075370368121519697793110233236569757499735948351247150278976594144047601464465506984161192040833748684504591142174630551710349295126823484932097225842741697506597879822349599673975911297515587262110362729067081453123319749069946135942083123951855460020987635900521403654889320336586004824306500768994423361588644293304265021690902911112207212962891231724494935449716458042876358653070692045955884970386502919704636440039122160633322920507102823205016825779841835506477528662305198469692700106089557886309479095807130788400472545634349764753903167554812207108754431559329958740736966770946896498585204881820887240488467148016228425197056743030082015186540134838472587863829926261874854876191396264769738389044700134756997869125255036173494115510370653301893099772120530471458415757425269645429620759414279862785061052852703430634492373075506830440078910226628373655224018982736922980864667589866191816579980911814283131136630592118032041305317284272590376140781027466188598200313488772579971666910154368545877735968039070164417087270527826223936071000116536527821872812682326237221700503380406485557307370712978660870454652957677250298459953062360231398810043102327135758477767879947713512746249354018358961691176835669373711318545481420027053292187479024951068196333440578480104435553634747579110090382037924728370154329804777967884101151159060835977112188009439811786520415323638368596396626161356952121225320136984203034527719795942135392877957613195854762606630149636475836851186952770500352389934449256421332477653216915780248968873572220118940439098556947863425999786917412322724330346106777635646723542954879148433155007973400662223
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 50 of the certificate chain of a 2,464-digit prime (171 intermediate primes).

Certified number2,464-digit prime
Certificatedownload
Certificate chainshow step 50 of 171

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008678590910 --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":1100000008678590910},"decimal":true,"detail":2}}'