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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 #1100000008799243301 2,851 digits created 2026-05-10

Value

8158056874695193860702050990485423295722918468128061637327745096337773433654977785679687826382850301533108463001575898040712846648896874779411856113939437182795545894787788550828786652212035517912567708945599381031189244810376358167195060996665195480356854289356642372717065098173938293518120711533847109316591539900796124043694059743578562224975980518437008380227041696672910367510060088143922973479098743201832532775793155412262078548474183190608667618541952064059302377916658809559193194849788013487140064840539185807722666210093787952358203958178927332687065224973602996896785951827123876155304495463744275042231208370744319932550303777182080459304186844818623383121708489238715287910478450263259961987614488863681168882488282666282647314461699152065033642118322703781904013278816404345907730398658628043208873301852171889651589545115274534754502956466376749590940749582711857987731401569097895937780130105807215842427828218157861947448422114084095663221036464045158090842252462194652527464527495191589877203928891190810801833079553153789029304816552443564694506227751065091092178629233443916645420186756665086126362320183863969865571815158163644041496857303740104091580743647179213141147765854269043909749392986435485600469812501663245578081224317059598180493761519563065287014002138785982009999061110124294570343240220026268829926691245154705966231465873577486073170812957592423337827828532069900846903510434862289886501147266378240927362192994123701929999897595054445781061137550675881086488658531020510843036026678898592366849596632073246759180400329011771474417266421222010397147460662860469517868967916509380939680389947692064662610391487085798758207490898942761700030560622961868654513633217318622742534165847190208205626072475146831131129964639534256056573271557206131397765294274194495664418383007286786542036894675855698817428881162624178772805948889558165659435194383608376194139805606722557844648302802150922430097734077989176745064903621170793494346929039788155321815678440349209470475502169262602506889044874338474307938639837120050014245759766982248978606182918613353585542618597740609199964924944848878173910044455089659591992094712491205816895007053880135332589256613099951392596845902754813033300954977065748804823894665555612973367420985965129589249311903437730968422407070989797755731174104911203988285672116737451720617761832479529456078691067887314401396526731959864289629758731731669934261012387242974645003396696409416835054061114321408526668672707480243395015330425794888821832997626406020947122554043159918251389458886677776579632538441865915541733397812484646699527229422700917620253913418833142390824602317689094276697803787863701234549526866824003966311819737635288620153253715782312813036145779364635524226404771586563069225157779627648115172378746047007049161246167478707566126091961041649631058638800108907935113921
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 3,883-digit prime (240 intermediate primes).

Certified number3,883-digit prime
Certificatedownload
Certificate chainshow step 73 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008799243301 --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":1100000008799243301},"decimal":true,"detail":2}}'