hallo erstmal was ist 2.000000000000000000x7676 das ist meine rechnung kriege ich nicht:(
$${\mathtt{2}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{18}}}{\mathtt{\,\times\,}}{\mathtt{7\,676}} = {\mathtt{15\,352\,000\,000\,000\,000\,000\,000}}$$
= $${\mathtt{15.352}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{21}}}$$