Factor Info

ID 21756
Size 509 digits / 1689 bits
Status composite
Value 15060795501329970208014306041634069236252559165439285236071032432050313042867034318674623865837292457376551207693296286498189696773765984716768120868690269144522887118284752791796043450659126494204116649687095981660183468972726484119932889462045674037285996367358039173647189905708954731184980044724695207984211726123635841943083023385201098090943689928217402381017597426451047407045466509589084323307074604770463210341771646032939547831157878736642288393505592124386384967534400871117804163857518820584639061

Factorizations

Primary (ID: 16474) 720314410420100602530036001 (proven prime)
(ID: 21757) 20908641120404959655392560424848834745846021762875904559487692240338873699807590673627562495919910999633513737766077654014627101517209615971029516742097575242689369645050840190019218405408162908353868305127236919982064086377707033492815901382177179558792289836639168295293973021352543613197205146777091899617168034873538281810821223439123868698354268017308074774114760932254918493215105655771979643026967831207522648857511305251252894351979249613330686217201368662659954316304443061 (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.