Réponse :
Explications étape par étape
Bonjour
45/3 = 15
15/3 = 5
5/5 = 1
45 = 3^2 x 5
.....45
3... x ..15
3....x 3 x 5
17/17 = 1
75/5 = 15
15/3 = 5
5/5 = 1
.....75
5....x......15
5....x..3...x....5
75 = 3 x 5^2
64/2 = 32
32/2 = 16
16/2 = 8
8/2 = 4
4/2 = 2
2/2 = 1
64 = 2^6
............64
......2.....x.......32
......2.....x....2...x.....16
......2.....x....2...x..2..x......8
......2.....x....2...x..2..x...2.x...4
......2.....x....2...x..2..x...2.x.2 x 2
63/3 = 21
21/3 = 7
7/7 = 1
........63
....3...x.....21
....3...x..3..x.....7
63 = 3^2 x 7
73/73 = 1