bonjour
distance Année Lumière
= 300 000 x 3 600 x 24 x 365
= 3 x 10 ⁵ x 3.6 x 10 ³ x 24 x 365
= 94 608 x 10 ⁸
= 9.4608 x 10 ¹² km
286 millions de milliards
= 2.86 x 10 ² x 10 ⁶ x 10 ⁹
= 2.86 x 10 ¹⁷ km
2.86 x 10 ¹⁷ : 9.4608 x 10 ¹²
= 0.302300017 x 10 ⁵
= 3,02300017 x 10 ⁴ AL