Factor Info

ID 155351
Size 294 digits / 975 bits
Status composite
Value 278618866579381298917194295203584713797490873647429827534982075947019982413198623127255254130764332115621023412439762294195219349026462236830628745197527092477691999479139501589844301407104241230162965346258694596113181520570996120408080263816488756585677777885045270391601037728157446836591281

Factorizations

Primary (ID: 155871) 4940113209560069716180214141 (proven prime)
(ID: 189307) 56399287781543179168997701324561782026084883996925848225773067358781153454010475696189112084348412134872138792554015169885340682449973524140298734952467580528278032858864808436475907522641285279016353487128514803541545136767424895977023373846337847894384941962601541 (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.