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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 #1100000008942579740 2,280 digits created 2026-07-06

Value

118308898342376557028308436704518747378526398128924243100790868687251793397982593636592044196544518122702865899100016214197290720092827196707853703722291738359527108399231630894223789642448571473747413391063461779541743080877190819502802548108195541273435488068333194289812725978687450672470686743826288800692359243368621488665286722292032703620281599103881567573554054260245699037843529190455653724107540586951104901780308466565500864532029656514733427444843976440604056153988088236121031148150098348562154051548481390247055954492759713624487662878557442259453899803530502494364888361841970278689011069323814584606327092853274547854669305002120957588862851728927438230793320774755661727244256686088366004538939311333820926991204164759111085439860687806577081986545232753000590699263804595733319116743692670681458927055093843867708607947408189080011355147567165374326230024944397594420642869010598797577350087726813676454247253038221832546227138670488837651040606915052019978304603672020775617697311310395545239043671820788521901171416350091068793310553974287992987677296267500701068175443192520971766796869850864614636735668834642799687569576783232784648703333765683610423898213768045413890942962828936410176802257207715692018634119662056023887627189265144728148276492224917871889931074209343843059212184196690645062199524401094984898416332387960649283324443103338183317662974712348391891083270180192045789592641947388505072682648300722312805347885543117730267764072346339493533776507870157097419973511762285574398961642287334123966644427205905464039520360381247620716391980694716545574213395146810487068797514334709509431823828864869800291667517380896048743447647278741640536875821225314553069146256509536353660235652355627328745494759256813754134761638352380448621528150583752614335610544669047822062313283644204987814400843116639662743227573231418795306125068971736489435842852294913709109462008450869759951115848953900408630430058514822226270321148836445931056776296077734108898491689576960736810016551397120274858444978318103336279388177838588193736062775478585602678856515133508703502568914918230728231871272736825352875895836753167814003268600636122805518112714498048948841363712045164282376796887546559689436391767114770526213382214212486214730871787244941543911362978201
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 38 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579740 --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":1100000008942579740},"decimal":true,"detail":2}}'