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Sagot :

Salut !

56 ÷ 2 = 28

28 ÷ 2 = 14

14 ÷ 2 = 7

donc : 56 = 2 × 2 × 2 × 7

42 ÷ 2 = 21

21 ÷ 3 = 7

donc 42 = 2 × 3 × 7

93 ÷ 3 = 31

donc 93 = 3 × 31

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