Factor Info

ID 42994
Size 309 digits / 1025 bits
Status composite
Value 257772017571559677668954225214398412938184396079512895914713879966126378538348136508987714095114717821742661054199632125174362234560828136997831296562162179721527326802373198290249550121342278727658815460377219250832191223636811143702949127585654384167106406176876650881709753171506043697387769439905242507713

Factorizations

Primary (ID: 9366) 529524906029701061263925953309 (proven prime)
(ID: 46906) 486798665438224431097063690917990350595062093911890221355110728847585915812973863386763517017720491065197439583849758984830025754527235754100477050417757293766294593580160160329262663891500859146730898366247084315195556767864838313539012214772652805370531719100437395346956499957 (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.