Factor Info

ID 31696
Size 561 digits / 1863 bits
Status composite
Value 398899975558745749643636310489784260721286121275239674497558042401713976645620641700108404218726490530012478233874208681757702847593646805959488688164469411425135725222820366033556800346884245708959836623600861851516653503458726035881693966415699745822975567602217735902136921363702400670000390400785356238276562714932608658773309984457470272056657692345499034757636202090698125561126263367816563028398711528613713824003998370781716588261276401809786983339760434899013436024884914483887858900458201769265950359626704497239604165791569702733460925141200800616037

Factorizations

Primary (ID: 31697) 7182382972736028583822349020404781 (proven prime)
(ID: 31698) 55538666912214285541561633700702143926960859184389141313860092832480504084469610364801577118626194083727662427510240024638598462737302814354665078565839694552515450627246591267322142151288863209541995852460904133728530021090995348269845182676166356400044192301715883004510039668951978108459117308983953441590927019388723860876636961044479227184261272199942010564325506520263923094449507870158587588167342161911656611227520118744601801525525915315187005681188555460409713032451493236311263678876426321723188569200672022650045977 (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.