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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 #1100000008375789175 1,560 digits created 2025-08-11

Value

394666563968005738764371720706162361955130639422285218514848520935485950505057847587916399880825240030769154982901285945904708115719305619182585613111747785317388770667709484647514823111543633499296174978174517925541709114924132981847278058849544082082046283705563068902240284066417566013606205295035520641755130642521164741794669728077264118194442308360388154977563969172846356221785072537336637137946448098818534497952854865661809755084890869191232659844307777137232065931994265618920075366946443585112818869317440692290594960359318030248361886597093625132076258433211500039721840521071612502161846395409891990998463793042028130362437923826263738448935207935357637006925987183336113348319613547805769530703289788233675827608000550734364364710396321797785858754356042269051963469417207656176975224571999540209972658242537532255682029146150506116467250013026615438977148678191654592920838839264264748830262753323328917321868975576601539344161275884131457415150696673815691788378547492965293151577161121730416039346971462260893152988993064461121237765295629746582645011068649901787979821108188096917214096219540604783245388577569367607386138849820008352835241151188019191136514919215297630246082442132203604114732766672731423938419942112514476008548192868791079568795183019172279012890682231557493390021040925155729765956734204747933032211404050838284877575773104942230059013980482934162442133627496152920446835464989297436260285901997785170753023722166737304706848943587214393869448661092709899356843559273858211994793515311085697122750499449700414660475324211
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 1,562-digit prime (171 intermediate primes).

Certified number1,562-digit prime
Certificatedownload
Certificate chainshow step 2 of 171

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008375789175 --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":1100000008375789175},"decimal":true,"detail":2}}'