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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 #1100000008942579809 1,994 digits created 2026-07-06

Value

56776771226361681713194710768808971735675463263017258560726415939910535398325187301598800237990049917373825137628784517061926544843665871138467040088182803892794454541966920915341250279373763734002195193551907121763087118061568437894732843409437373055640796665163346505976128769369731874464707639210798931851517779059027058118826434551356657993264398393686236707273079341851398642547873351966961349055579611916254074302014892156022679611319705147586902574469361520392949982558613382229163246839180718130916539748606928066315479614140907235571626523538471643842430498999824108557646688930203937648968703980839952474189840897679344991940519140805113750755563806917555039724584368137729502459841732849006433661313795212853606670248144521409034929555489661422390959451927789099412402994953564280144487046946357341783085055149036436488420500455643753879375061811848555596046310422995900791646477683875123989206279830149610156765375053464412448210394922313396150679762868916890689070034741462189266660073147774917707873307469507990003492583454397571096958784612645606906481292126398853933331147510918068759343951524430356378288818651729316930737848139578563012057566709484737527484824109758281156786478565718164340354763311037273056433061516287273117069552740201821747598869557411697559738354620727111088841274555582125751397882217209520122765585818043180963328890288589074871556888409291649047070385071036923921920679575752800938104675257012072826684598624812581497612050337587462556075172363772887807273097770176167625806049531738605840935023400823890966749320804850790304805798271845441773896281314637720745925709252110266051698986972868863389309160837993631752162170440299685923665640690287680108917506233759762011195582744315707804987879966312693064853511524857547169625567196580434192590536982022385751609166933398929651502112674461944298628236410013039476981367442327380422257087866679274953634609058559906779346247751765747191445842662729151634284117481240948028530614124050221926487444521497
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 62 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 62 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579809 --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":1100000008942579809},"decimal":true,"detail":2}}'