Factor Info

ID 21770
Size 515 digits / 1709 bits
Status composite
Value 28148965423736031577857640731510465328495845033253141652354564985572839887551103347089557648772713627270000503711033357575097359790424161516255665710993905736324372953577610356525307444017421581276808392005661572961166706378448338619943090965008550091224640475078387413554466852092662344749155881181850511819682901060850941198994526430874917179372391363062315173940951460792214054531195123772071137919731904384204206248918142555443301758553028787149890271941603799069542045376250205075666650074437424711255471870397

Factorizations

Primary (ID: 16482) 721493104094461397911450801 (proven prime)
(ID: 21771) 39014877985653805589232762100306509442850835662763243369588838437859229837536932262134763560444171454867124981508222834141260275894974500338494050964189513026811494923546690096017061001247659068895575492742374717247432154630501887587695240564920344939837998426046034990148314328110298170605983425648870646622821636294085468823927366224683859233710724732285453904365980222417498867271664723563434932879080609494652461593621204363377817079507500517182691268469438130258468344008998159982797 (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.