Bestimme den Hauptdivisor zu 840 {\displaystyle {}840} in Z [ i ] {\displaystyle {}\mathbb {Z} [{\mathrm {i} }]} .
in ![{\displaystyle {}\mathbb {Z} [{\mathrm {i} }]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/85a7b82444e46cc862c5f6049ef5771c5286c116)
.
