Factor Info

ID 187663
Size 542 digits / 1800 bits
Status composite
Value 40428905432847486521887435141002676246915736058303310122376870001627065513535953768213270267730020585844878919747386576875036519462617692443775394055970248924350837508066648552815234143379916357361485275791569975754937864418071813960454237021752797264730259622616381131866800548620823972910509285786256438735446438384511926309419245619772961002478116925816289065841830707668859850318742927414550144100529087233484809023828070409933334010393206689591716058260485423745504808096816922511292816325412584390961370649929942470198661138376732837837

Factorizations

Primary (ID: 152341) 18734546474707639583189039262180012030637 (proven prime)
(ID: 187664) 2157986876673426195902842710767838959948898912433190560640831542403532158930020487256601141273221309903313254738304788357669310732723194989204403325079109921188108909161813709835827421230310676367063619658804795507173305868861900466744947332621945478189302609677484220533567099881475811439630811324954331616629111931514212536674108962414810341743663054890640913162381284526108469279451289089513036178229677351436401331483369632797323702780167838075369315359229229672108216848935696442088276198514525601 (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.