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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 #1100000004861552149 2,078 digits created 2023-10-24

Value

28365681222861261244640472584190358712095346433291883079646806328492790158137738581371196956986399034498493985925701934241843542244251803612254925947572410399888307348843725371139101578307415025730693599456744673388981402276616859404986944606053379572029323416384200616680958569435426543813147081268467051137670045442097520555070997096857277113640487827199207437180216352755847299172632783126911617692968320422904362907560017675713714511536297948300676691590302586042620241756545514409918296986460308650185251319615984239798854228169220899955814870365127859236530111523358969217437889304226239460233110311143345497049458386107502945864582746870857027423891909704270396261127228438357911641143915742045514124100659223375400803942205100893906843696931845544281802777768697758691354631769270461530785988391740771926234577016219865421517124859339775439572059962094219232707664257476042150267674087739988860305495501521973921065512608397132897704742708136294139999716621220348291771259922144281988586517488145989590791068951260239569727048222237915554795108207632889955381359484287899394075354820882224207033032353812279692803169891463454703311099669302814214993168974921066671085242544464827814607312007553465131883406986736394322770454330126793711515455978364169555291537217463117804073705218234057245715413556075888429468459067162519788101726882372095604911076199521016129091607379221085404902381985872733713749349761560434362199022192688420302959512768011668985845344494315618394708493074336598647766866289278414287292299721049220013677286136487113251011986963398395755507810957701595757314269507253659510534434706216966828654505910680260803674688878057771304983605503524418475070353070700650581209415510369757597426033247884417241543570157749359543765054707219346513137385456013922429832204599105511022413254742210871666318139911421296307407614990736354161436104295006045667671676089290771705314754300345904448484893966121987576605452127151951114227408646992285041705658204334497258068495065083679598835995471638191025248812655085733620838152844529769573747216566076134771712967
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 87 of the certificate chain of a 2,911-digit prime (316 intermediate primes).

Certified number2,911-digit prime
Certificatedownload
Certificate chainshow step 87 of 316

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004861552149 --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":1100000004861552149},"decimal":true,"detail":2}}'