Question

1. Express each number as a product of its prime factors:
(i) 140
(ii) 156
(iii) 3825
(iv) 5005
(v) 7429
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Answer 1

Prime factorization: 140 = 2 x 2 x 5 x 7

Prime factorization:156= 3 x 53.

Prime factorization:3825=3 x 3 x 5 x 5 x 17

Prime factorization:5005=5 x 7 x 11 x 13

Prime factorization:7429=17 x 19 x 23

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Answer 2

Answer:

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Step-by-step explanation:

(i) 140

140=2×70

=2×2×35

=2×2×5×7

=2×2×5×7×1

(ii) 156

156=2×78

=2×2×39

=2×2×3×13

=2×2×3×13×1

(iii) 3825

3825=3×1275

=3×3×425

=3×3×5×85

=3×3×5×5×17

=3×3×5×5×17×1

(iv) 5005

5005=5×1001

=5×7×143

=5×7×11×13

=5×7×11×13×1

(v) 7429

7429=17×437

=17×19×23

=17×19×23×1