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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 #1100000008790791131 2,542 digits created 2026-05-05

Value

3107072880319302497491429530626600582288241217885417655953861021496723016986955257923831246573399834340128822421765862258618489646738118276235585584071948554473167394441545217183177839860621054148253136416664973125880094987094458703091745632515732509813437770529773889744509956390095981192797698997680170139507500174688871725764638756509195890342526079493109590612871671233957372742526721490601842590724247714113825011396385198634329582860732805814379932007658911793106566477416053462463788763593654226653093395469394353286422942520295222408502040584041275007215039425448765682886793503134315199538722868729010634668308460263462382951244093720123725246566908268646678161788255860154257991492582799547911224404107184020396481745261578862200307056630566382807003965299442177447492919674165729510570417279904719431839780016813688995373010116390747609437053604903396391404009676797311222204982711243083469797899984320166542699689349917842188050710830348851520841584331099866972880973624174146168108843176286290689090505578950802712500411281153048210026938400040419414716269673075648634751805689055425159338261394973917273546844758540448896867596349878521624782638507551665296476829515847910368227822075738321151988035334600632046138657427654392233847959924227539573334093067660982490284999762086644759891966107479782858326750771935869524034923781195195947136766121127991586158519068222250115949718764094309071226584140641104559509854108587771989160999750644083986734319836191819927424610961285105380218217436613484649927965682641956249710053549820706840191716994098704046711838959291061609243567659373034383828678416208821972991768757785455798304013805081100165833904683920621801618864581106175525063760516259040646362684874640239717953209420002589552298505939682021747319369463116893027609222165080533275835226754176440852821391187734321687421148603924466731208440202662919468681584992710137619013228632933608790852406005691037092516808072891752483370516872400800574316432718424402772371618145799615724811881921262188430872930520511504643670642830900801543579513541950915768111782359672945141466397643081560454025063494410547909830129823409674877711018088887130338860710187646438050959887650433313788268409015496841866828281480915704637634474124173463515839590030501213046100907683953063978706429634983261704093170313417370664892758951908951813899822119930223827669438398540066230977840951518760676876146043397268372410127002174271867296129525330182358496509630984412299974816472842247260122073322277776165403095021228075131822995758295924426501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 3,331-digit prime (216 intermediate primes).

Certified number3,331-digit prime
Certificatedownload
Certificate chainshow step 60 of 216

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008790791131 --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":1100000008790791131},"decimal":true,"detail":2}}'