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 #1100000008718455238 962 digits created 2026-04-01

Value

38582953660941463636892135245780606884777303975520841958289452981008787945810140427612336076270755963270770594222774307125058488470193787709093529156924331131840009964019248600886610703440753374638306183492987030581309993840985990524829526918212260890926785906968141235488074587805365550813839081695239409556654046056726475116591305703567632057624059545968125589137387323324784489419326519118736267724120673585321343020003107506066879651444503144555691425741840623190546114297933830539123672660040449943610297933521611517566848055676600537087786374509643910602045749890122508930155023438071264893457312651876080978347769034092588443205749560290408152192351439575500357152963110910769208549260009947301227282755470618628332886627473778774585529932501324589018713187171375783481914089961369179273520070135731968362505541700185511594813102698653510490583931652639803800676776607213128925819893077476562186944996025836845669751763233555102046959244719601593881277393
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,123-digit prime (96 intermediate primes).

Certified number1,123-digit prime
Certificatedownload
Certificate chainshow step 14 of 96

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008718455238 --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":1100000008718455238},"decimal":true,"detail":2}}'