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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 #1100000009060825613 2,861 digits created 2026-08-09

Value

16261990773768525019243055400036108885733821543754112241069646618158500963217408021540762721151361907822622775440201873898676761260278834113042118518393236033736376857135980730219305124630551857290238833384592582681106094830279115083106986223995325682676264954438266214251865823457862765790731697117921017718978295895277866926286452690474776413934419466343660052760795282075892965405567967639276954186949660691269595469308450914647732421509216291015825073328011171260231956804308750420084430751779911932671896108018872682726702993914926050171575306103136681580678683144433699922789212751165069282368149129520023100903130556247388996074974367912950897274164838525122076042423695569288438576940289183038205661907198344218834391778521676297084253251920586420597918293023439428244795546942679300783139831021120542119088554019769534599518032369709339141032769178372481203995428343993241868091899274845326403889180400163731691502226926171403833717046671019328493992776962162497219421048425226044263418200288814171760506405377597309907544906375074191071293558994212152184918097979189837282269980569352458168140605982970865670484074473182152566112833207379384847026424650827788887786161410044747592170540399049421347841461953636832495708565980317851192181389125142339198622954214929981042306518119137429447892371202614196000193254090802489445463165636231661864315631131214786604511473636102539350641625011546727134941678596932763314509134217448046962866318917333472127184894208943453059606663228554249975746257844594210565549633797695006191990044796934005553452327285012840475753667857512602553097438962742919570618796605985739150857951755610238892561930468552863530193847350324866618082577500329633014596678815348278434745143140671291757168752665339539690241165307194698729099608804051338704280708844827142467995988468292304636948321170809308166892098705484931693728478139058752177263197009225293881799900000628895458768888701898710697518661858477885200347999760866325506150609314971426137164291329525766265784290502493904519286532063310624821837526970643423597171988249397778305614904073148683121227953683653005646110956459516680508677573346885457538494517650457440935955610420739530992013533238384773215584914254202821633066007338223097071326966059826291962084283214767035739558790511124699411373757848804998328835840627457847530088729940297468853306973835891814453421167654851797330659089492952992831999937483077348944324174435070108307363765940792606529831734245399012991962613492449107446270701355131172392785989527073342395779621773782040900266252110758537162598326358387348502877649630530910426403228168411711015945563540482545260208850733017268632749083263824133602488195176172490856684143965367203346123808361796359979187511547041174081088895814889419309505998022732240768569300820069861293667536908371269774264434946072594192345433720386760898035533327401491
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 2,900-digit prime (209 intermediate primes).

Certified number2,900-digit prime
Certificatedownload
Certificate chainshow step 5 of 209

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009060825613 --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":1100000009060825613},"decimal":true,"detail":2}}'