Factor Info

ID 42480
Size 147 digits / 488 bits
Status composite
Value 447272778905648078852827651587592106485307839679459918439777904922824847308514550906188062541063295144884754791424651495725392935898499595263758549

Factorizations

Primary (ID: 637) 42617146790676471298183229 (proven prime)
(ID: 42481) 10495136643063579905680589922953350851580646551876987670857779272035020719345062595648255257721559784526356194358088873081 (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.