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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 #1100000009121227449 2,699 digits created 2026-08-30

Value

26205251609967245195093269312514734328643755253789581553158442846620501169987524490322383679306047986849339286155279458911957983430880793829513894582651126618984404168102731961752004903736567121425144860743508316598210009916150963794067466310466396802459282331516055028473009338064004464287988631705132929505796259209901713761947288676596396392385439705315778332615568236541307928630124709451855348223683596111739250812195323945841648876178874374670651467046827627999209213225711174793586037910632862472894277002603523920966358224975762855280168074103200532514065449801156737186684777121406366489680617461404554201566007602006977814377052389295898017801182263371544742449058989113657927252018282518053671608249108256620068439335505364367852846653229425315298223979904937051931924566686020618612141480845976276053058069502220417231853754342184923644675827603239624116315118005244395870163032733819974420162845512464714816528234966070189729071975357966507950771898002041645255980853320087340084812068997658291313117270162670979671076791597097898268412842682716072414376757867798734481891985783660891925661974271242326580298186188028857110498428236114708485401713399150806450740062147287316822564619066668459667141428458647524846688640930919933073791095762624890066646417774077678949443299602000397241005526043773055718123833602049254283318195560586171071942078951658151281960524716634874814201905238641543888786406065127648165988680492187194189578937021304781594947533853850021251245345645299846782799177415027611663911972568918183831099755694669835523782185934073292331808702982936644854613291347796483778155134228380324060435936439687586495729435543693915877441421576919291442422210133976223355186735946561800605454235903711358109246024237444729857053125430831825330317384773782774934070216836497039953841581341862364040401694656847000026649939504976326012500497690911174347006812464885042336420820894488528807743088232088664806936660259254779984947428987778469599729952935363883365816355276865439182971136460534769212703218202158685704718624835644100307065677838795784919241194857393387609963319412220900744999717855209764090132098211718767526013082833025790263980733137508006257061697947630292555069042994097670539477198425099961306323196647846144320941847406372363662875158592304743001241409761074181980106122191880600632348716462806104873566480832050366322343614546850085690584704219115330355418112700846759306914260077030542483895024612032844361332893469720466337170471844522593043199742490599965167018576184700107435770635089167810256782941387587551028713698075800794287103961009300054391176390431565042873346259669933733470879263677802889391458209035354607363375622242856698922506807853102247
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 3,048-digit prime (218 intermediate primes).

Certified number3,048-digit prime
Certificatedownload
Certificate chainshow step 26 of 218

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009121227449 --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":1100000009121227449},"decimal":true,"detail":2}}'