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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 #1100000009104084543 1,904 digits created 2026-08-23

Value

17125594455903122800798330072754973242544297406902916904109622093160092521437310281468904521977051788488616411548070518833115628826699891159544634955041904454115884975195913174959573078247297182616187243353231289650603207503031791300420511421235959551709378759952397251485786227226186900038965493025660067294520415589660984100952724354461512287400935831225254472756793699975811641230371515056439878022071716195937982377923861319590963841053103850412503640180554986403230728418109020530538108322193244640123214411517396728830453479538552135647914292809585463963418329791298750615153856335113914264734780958857335755060677705171239756373456623904842256358266562109736879887036484597759204230423704878763420882476170105477793955799886752857923313699776563978104322636865003157664481016642317362398117413702626763517955961633040292708123685327314818493468612120345475361525347291561162397342225352371463058365794111329518207146946087054874364162980834884003211186412514866355270467167114855701880584184797317958385163413490469399633249035571794385811892817052440761727082845306447399060345303521662459234482039347784857222390088164170619019663322540444621786868225723924271329445766610195823465599986891695762527662657096794265887316196351617682240850086079058116696024643472429575096447143151153924156971574054125233178277001446215300979137827132595488654435920116303881657568281449852552403223977911025971356427031429964719952540352532433929733785952098296956441983461914749037272216321272897577228562887710211495039717566839514093944210816072988656830452212869834634757153628952306321216202363116254682033716687059727024468816468553450880339387806247317935294165436531916786688151145551681864848398268429394160238109707033178525836889920145503111772882419393615836667307549519532934796010004619235442908262254391826067309936557530938666512972151432902188170810516884253935077672969125795325379435079868547
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 82 of the certificate chain of a 2,989-digit prime (221 intermediate primes).

Certified number2,989-digit prime
Certificatedownload
Certificate chainshow step 82 of 221

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009104084543 --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":1100000009104084543},"decimal":true,"detail":2}}'