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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 #1100000008676650242 2,258 digits created 2026-03-10

Value

26881214279811365224274259626043983047882313011268525245266926043418180803594620981139139579351654549445440153037338319514246094639633676128778505689921199094082284533987356452999123664361795330768575473400493386993896742078846221990936653931643374596356937937839419755319465860281852519693934480719739598837486720013915167326458591371178198093139364538878661607577608854650516365827840237023685502004800542421888195504801300525060784938381848792182199212574454804700773641586423053777804166580466670642852802477388629141785689028309951752492994812951050951441580208102139658637330202486060822373253581405894053494566739155655677176287875732999467050960686651275825338204199259069075537889634957570830763402917528561307844875588052384821735317786295058344121852986215238484433533627202234040353668557748841626172431456754053809399396139645201364718617228399124271467876298586939620001193716439001365975429898063966322227366596982423457615023465748097164976332893467673698572999114104135545551953198653669948538403384372057339941170731020322960822995823319618072092969631282829747716182055191703103216199860013354967765459762076247307755006677541822267794202912877053846634754910488688452818507046606547421689505266443290433995875867669491403143034436048182549978637294254179928571509749593156083612025391735234091779218162748484294542021938800460988624826867304407898811539506225361799780290479548917082919673635271672101475244655148456630847011048031715140568774499767240836000806441512399897853284894387463395639300287649421188092528429896879450267716071624845667584000446924379115814781704703966518648164205272202457905848789535670228614093213259610386004959994162059868630736574636933625090125157841473367053168734324313024329397541745441456268145560646285871421902279528644509090095830769455125512690476020364616135977088994722314616825504641725297366969180337426748975973444195285565651228705365737717990711317521537101860309302883767469338358049640475983138180703720823678155551917920512855112076279102018740753467966405931149507816260656656517986612464978571358766060168428671975120296943578732780193253034297726924883081584926829481642727695818733348355104562244374298385021647241438346868924267481753674353374774944768106641337831423878020401426439
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 2,930-digit prime (225 intermediate primes).

Certified number2,930-digit prime
Certificatedownload
Certificate chainshow step 54 of 225

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676650242 --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":1100000008676650242},"decimal":true,"detail":2}}'