factordbrpc · fdb
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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 #1100000009123744720 2,646 digits created 2026-08-31

Value

247028580961728767770352089000111824813125189312227286136781335650562077306995042801310570760786762735421328515108979795374035889430782030580277110896266130894151940423729356846305838218597891584903346161985188075721552720551708031254665594025163350782639617666445715843971623141324387800483271674728647123617501368557922244669633359834277932576848681077078127988342786653600495229672815312812557059143578015371803500269941120086640771288650900744243047379632640931187724869149361347779104789525587915407228779545384272890056309823293319435098225183726593729724220994882522344100036469052373558853989120899795270729119742941950149078948825255441072954904990493120275070925306056517775325854137619769242110724169356881018707069707326289944804237733394011069043949501300523892194932199084092743078101035118713038086521350931963186502360818881204755002825627811502909820493416830605513887161433682690615540019554369468347974095479497022446317900050189265757412575567235466393541517741264469102985537386168535173999591017601603335069785297458407071899887229596122028472372051357196091449546603273430848342539663565365455040965451925649565909985892048071784749350691477821076431623447227590751564672551506242950465029271126732599185562835666908371990302911508106832351791970641960273824131336827147523692105352218305851219976879398087365604098097976049438145098413194805769263188973403150055605071010190054159250075120142142005207644382900676988833483390972605870752888846579227425327108746684652747557524237876146991074333226916590310963303502256016704887754663101704971703814955893009288314301722736207636625454240101542088931392395056067291082592798398733790327702387243557926439211207914867544521406417046542835893956404879960868753364412114003598125073078886362551834556546387457841002731059495187141033388368601271404610076211891308405955584021087843818888201344592171290811910461048829324768617712042041156409053902946719897397471419466765952096336695677685167411534125364327784530863655140128614729596663511285901605686053603103012729296672848942892766763880649559307385772508594218453517857649863476053251422123085955062061716543363963948836855814676971549483233352205562469015341603476909556794909954400401329254305685865376354922736547813365306101424372539136081228495394265845935754752378752471233087482700683719517707858300809935471673275621287594233605825551026752095168002318825728483604675037173123837207849758013399018354660338439555116444628081564448777196066842040446176329652254069463786906693673173407305963959564172874405180919482860842593282227256644559714230447940413321960929332109644080735184930821973588914912407411465669723
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 43 of the certificate chain of a 3,068-digit prime (316 intermediate primes).

Certified number3,068-digit prime
Certificatedownload
Certificate chainshow step 43 of 316

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123744720 --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":1100000009123744720},"decimal":true,"detail":2}}'