Bonsoir,
48/2 = 24
24/2=12
12/2=6
6/2=3
=> 2*2*2*2 *3
105/3 =35
35/5=7
=> 3*5*7
320/2 =160
060/2=80
80/2 40
40/2=20
20/2=10
10/2=5
=> 2*2*2*2*2*2*5
485/ 5 =97
=> 5*97
1 000/2 = 500
500/2 = 250
250/2 = 125
125/5 =25
25/5=5
=> 2*2*2*5*5 *5
1 888/2 =:944
944/2=472
472/2= 236
236/2 =118
118/2=59
=> 2*2*2*2*2* 59
2 520 /2=1260
1260/2 =630
630/2 =315
315/3 =105
105/3 = 35
35/5=7
=> 2*2*2*3*3*5*7