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Sagot :

Bonjour,

Il suffit de décomposer au maximum

a = 9 * 17 = 3 * 3 * 17.

b = 4 * 25 = 2 * 2 * 5 * 5.

c = 8 * 9  = 2 * 2 * 2 * 3 * 3.

d = 4 * 25 * 49 = 2 * 2 * 5 * 5 * 7 * 7.

e = 8 * 5 * 81 = 2 * 2 * 2 * 5 * 3 * 3 * 3 * 3.

Réponse:

A. 3x3x17

B.2x2x5x5

C.2x2x2x2x3x3

D.2x2x5x5x7x7

E.2x2x2x2x5x3x3x3x3

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