Factor Info

ID 28850
Size 138 digits / 456 bits
Status composite
Value 151780352854336460284131217732476886033527137073971973634056872318409545175964476329118864794026623576738093176090470652246390375707395649

Factorizations

Primary (ID: 16402) 12621774483536188886587657044524576122057624161243438720703125000001 (proven prime)
(ID: 28851) 12025278462415754098247421687266362906048085705689291620169672582395649 (proven prime)

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.