2.6×108 m2.6 \times 10^{8} \mathrm{~m}2.6×108 m
1.6×108 m1.6 \times 10^{8} \mathrm{~m}1.6×108 m
2.6×109 m2.6 \times 10^{9} \mathrm{~m}2.6×109 m
2.6×107 m2.6 \times 10^{7} \mathrm{~m}2.6×107 m
