Factor Info

ID 21551
Size 546 digits / 1813 bits
Status composite
Value 328881221076939512162913463311872057574741626618044680826223753796589288305717252463330950218896394258720375224237300655605760569820879732293274673096153953127343499409691584245045702413006504273360829912360561975268128742516812752290434913636916195348864715805190788679798447277869403584627293462283789196611652369432313188752659165710818017703709560351997497075925583091750009259216244113791602744255530024917839429733084566140979841052547345471288241818471213118571381177968903796190153212773740139213374012271358935460228230800577536566219083

Factorizations

Primary (ID: 7013) 864203844381482464122519761 (proven prime)
(ID: 30087) 380559775584338445996413434574380976305877204176044758898078184719191426957940951103464920576431959307912546982605948289438883368469485060379463886114872510868470590004451825930016031917870606241910836088894737489842057943145565927262068098470748479788707102789489599283172080993638331207199027297198875760761020917539499148880222699098695142812047542069112420579633508111405728850663410479719696325482385262244818909303491625461843925461471930673021815755367453403959380923429029491072377026992603558601044396548691803 (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.