Bonjour,
a. 72 = 2 x 2 x 2 x 3 x 3 = 2³ x 3²
b. 144 = 2 x 2 x 2 x 2 x 3 x 3 = 2⁴ x 2² x 3²
c. 242 = 2 x 11 x 11 = 2 x 11²
d. 2 205 = 3 x 3 x 5 x 7 x 7 = 3² x 5 x 7².
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Bonjour,
a. 72 = 2 x 2 x 2 x 3 x 3 = 2³ x 3²
b. 144 = 2 x 2 x 2 x 2 x 3 x 3 = 2⁴ x 2² x 3²
c. 242 = 2 x 11 x 11 = 2 x 11²
d. 2 205 = 3 x 3 x 5 x 7 x 7 = 3² x 5 x 7².