Factor Info

ID 153492
Size 756 digits / 2509 bits
Status composite
Value 168781426086314422173308792963528762481526497913008412579417122443776753063857730927744127584873528477249302606674859956690899138896481569226265275931813827116091166007714090950322616045199671304011398376848424709658618981681615813692304066673762720015892529106500245082323924243900734944260410315037285014904810238345927292913209864779263124360877472647170024426372330137616092989227521783894936731974588838770621973748673939210698019320001580927871938027080705370363257933290490857123150641200282423479619625988385905410622939898608990782282420784818313977709680889637904879944872818460287481764978850718019355829773418249963910283545761279969551905511190553247015068837130409886119176239259987457371873532639952090599469667254761336382467367253726444041

Factorizations

Primary (ID: 152178) 252778567915678303049 (proven prime)
(ID: 153493) 667704653436506577619168968951713055712602875213363387573940285460535186351049391107831680740833952439333726723524700376597588315378932693507094522521170453076675968169346253693164181137784695125734511696128198044786399364600424931755290484021798797042606693414859766590401353972774908905302510014562763174338475370671769107491629483209257081530840823474655824079284859959554480692918352246767133050270136039787188894832067249201760664867935482435750906754278616919061739806038604413277439574480198194508931989424773625925312775708345066720411707777981974511846457389403471972264226850010377048697701283850744390232321899374384627290369562954645658384167829913114655982599351904578717515268744125111503246480349385966804543205366153409 (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.