Solution Exercice 1
75 3 180 2
25 5 90 3
5 5 30 3
1 10 2
5 5
1
PGCD =
15
PPCM = 2² x
3² x
5² = 900
720 2 368 2
360 2 184 2
180 2 92 2
90 2 46 2
45 5 23 23
9 3 1
3 3 2
4 x 23
1
2 4
x 3²
x 5
PGCD = 24 = 16
Solution Exercice 2
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