Factor Info

ID 128397
Size 753 digits / 2500 bits
Status composite
Value 215673660256546774761256452652940877862572875525397671811344255586734341698819076055156450061648625068195206577636353101357269700643461708554010248386774739893919268496651248393467153698461528062416260921499532284594347774444672786577778699803831403886434056132940160314611827817939710263141121620775923326420659774193188069424960512705523151443127256475690343507504841218882680740763378005759262054500935106523203545924883380086256202158068025020742855809216309814854551625097654483865053856474861357381393919118893023358338548238727278698948868927149634359200368228851709145871176160620524633323539162126558736720888910780687504049269771273474878266384053902230215355727260276246922358736107861193525866620416930313533875690455345250650954158742470699

Factorizations

Primary (ID: 1097) 87426439096566323815478492553863521 (proven prime)
(ID: 128398) 2466915757810126395140688174118424410818659660600076347248756506917722596977133858083786130844766542061629423782374974748351939667227122739616363627010885681061437043794322510714475881776837229893294439518153811464750012407833866086848409142733384285999046490598195387617092563037891832231370962602535913245724692779649518879789841279314197872678200814353930419336956634032544147941558608725292595807582455582842036453003239859938807686695714015579270884031742472548246172084042259324837634416038405568311285625122994123422483392486552486682208905714197925543345973167280340815568528106406985539447384400556136953207351793669364052305303569751340182532260585945376004007184242892103978947525359833285059168434451607819 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.