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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 #1100000009055089104 2,182 digits created 2026-08-08

Value

5600256653634356866145016759065152253805213405007756840161287857813291913759967058034802455898250841921585242898362546905991274357518054290931054946523938066746870906356525053574661069118088560576103117913031446433915634866395354919569230084646861149542726087474889683866795539871325771171596590399557839899951668425017036096129564192684800244103308784424527798721677420808832965577586652564413529560819079293091589539202975853349160223384068227149246519035109721342260470500776479085431816648195006721219114244809068164238264055699436576228724467882308689510323754124137478112355709254715805597401675960878071924153737656204664419528238477608495274686889965946803269976031815401501138224721263916461401354886076486229499176203759604761042074305670871601664077236410142274746362120652549173701646973510891589248255456709742345361309617127620502447674453095714698559008168096719155636527295533233971132404297004217751046509720445921081635480878941687881439360254876991432748523482215648987903572540357142414279970480786179039445659908735423525612438742389887087062796720476619927070362469090615858990822943253678291304299359969501050635813424634789646849512399431088475622319067891504173515250400518624963253178771700673102125591369259202612529389166842194062866837740239357321573875858370611071361961799613987325524173000929547818857648114468426236981878838314766220422532174456666778991415170876402914188894489179665055664135393403998991681028561223750886877255238403653329457333051523227406011132068123011184732928350760609581055785966893965952733886829667265263055595156666208619807800092889187416377515489298443448458921148296120895460546874357693543785149114282601064808202693432754940501950205410871617759754564652568148770814091356431658900398632564199829760804871839376797176981706256442460834979561138504845139817325973086714812544557110210621049605689037235268194558566401124606491021435133758203885335319593306586414010681943861397652166611261693092937780061080475319006439616306452653427613327222090016511432759879485010787589257093769573932637472521333428388076832941194730465900005109138637354925101717344280215937486621271904508746190225043140209503180236157557460707
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 2,523-digit prime (197 intermediate primes).

Certified number2,523-digit prime
Certificatedownload
Certificate chainshow step 32 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055089104 --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":1100000009055089104},"decimal":true,"detail":2}}'