bonjour,
exercice 40
45/3 = 15
15/3 = 5
=>3*3*5
65/5 = 13
=> 5*13
34/2 = 17
=> 2*17
186/2 =93
93/3 =31
=> 2*3*31
Exercice 42
9*3 *8*3
3*3*3 *2*4 *3
13*2 * 19*2
9/7*23
3*3*7*23
Bjr,
J'espère que cela va t'aider.
Exercice 40:
45= 3 × 3 × 5 ou 3²×5
65= 5 × 13
34= 2×17
186= 2×3×31
Exercice 42:
a. 27x24
=2³×3x3³
= 2³x 3²
b.26x38
=2×13x2×19
=2²x13x19
c.63x23
=3²×7x23
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bonjour,
exercice 40
45/3 = 15
15/3 = 5
=>3*3*5
65/5 = 13
=> 5*13
34/2 = 17
=> 2*17
186/2 =93
93/3 =31
=> 2*3*31
Exercice 42
9*3 *8*3
3*3*3 *2*4 *3
13*2 * 19*2
9/7*23
3*3*7*23
Lol!
Bjr,
J'espère que cela va t'aider.
Exercice 40:
45= 3 × 3 × 5 ou 3²×5
65= 5 × 13
34= 2×17
186= 2×3×31
Exercice 42:
a. 27x24
=2³×3x3³
= 2³x 3²
b.26x38
=2×13x2×19
=2²x13x19
c.63x23
=3²×7x23