Factor Info

ID 15678
Size 312 digits / 1036 bits
Status composite
Value 425083373261556299161709614827025259350333901007001195545060187764890172383066798259984069679909815492913039103687129115081428830048645209265415748923662853710147712561493533423348732975615569370690165669413905506175546788398060145330359156108865499363048437525865746633948716927944432402281450427200286799273051

Factorizations

Primary (ID: 3145) 1772303994379887829769795077302561451 (proven prime)
(ID: 15679) 239847889870771799887868051765657533356503707887014216727456003326631981948416209002804156324444882222593873522852013645370221478486574696522730647562750233331325432797836181853959303187962436473576793930894180036026191815595712310978493299453730613841873161008886393057891601 (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.