Factor Info

ID 143447
Size 135 digits / 448 bits
Status composite
Value 519831741402521296395783318476487553420814525298233843449886693409873926154368188078574547450519788204397494184483621343764124031583637

Factorizations

Primary (ID: 143215) 89761824918036320617 (proven prime)
(ID: 143448) 5791234100656845507028375964044017977808516604140113097727891046794132513354744240202321756453022514888912328778061 (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.