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Sagot :

Bonjour,

a)

1 043 504 /2 =521 752

521 752/2 =260 876

260 876/2 = 130 438

130 438/2 = 6 5219

6 5219/7 = 9 317

9 317/7 =1 331

1 331/11 = 121

12//11= 11

=> 2*2*2*2 *7*7*11*11

=> 2^4 * 7² *11³

13 000/2= 6 500

6 500/2 = 3 250

3 250/2 =1 625

1 625/5 =325

325/5 =65

65/5 =13

=> 2*2*2* 5*5*5*13

=>2³ * 5³ *13

21 126/2 =10 563

10 563/ 3 =3 521

3 521/7 =  503

=> 2*3*7 *503

View image HIRONDELLE52
VINS

Réponse :

bonjour

1  043 504  =  2 x 521 752

521 752 = 2 x 260 876

260876 = 2 x 130 438

130 438 = 2 x 65 219

65 219 =  7 x 9 313

9 313 = 7 x 1 331

1 331 = 11 x 121

121  = 11 x 11

11 = 11 x 1

2 ⁴ x 7 ² x 11 ³

13 000 = 2 x 6 500

6 500 = 2 x  3 250

3 250 =  2 x 1 625

1 625 = 5 x 325

325 = 5 x  65

65 = 5 x  13

13 = 13 x 1

2³ x 5 ³ x 13

21 216 = 2 x 10 608

10 608 = 2 x 5 304

5 304 = 2 x  2 652
2 652 = 2 x 1 326

1 326 = 2 x 663

663 = 3 x 221

221 =  13 x 17

17  = 17 x 1

2 ⁵ x  3 x 13 x 17

Explications étape par étape :

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