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5. Donne la décomposition en produit de deux nombres premiers des nombres suivants.

a. [tex]15 =[/tex]
b. [tex]35 =[/tex]
c. [tex]38 =[/tex]
d. [tex]39 =[/tex]
e. [tex]46 =[/tex]
f. [tex]51 =[/tex]
g. [tex]58 =[/tex]
h. [tex]65 =[/tex]
i. [tex]77 =[/tex]
j. [tex]187 =[/tex]

Answer :

Sure! Let's go through the decomposition of each number into the product of two prime numbers.

a. 15:
15 can be expressed as a product of two prime numbers: 3 and 5. So, 15 = 3 × 5.

b. 35:
35 can be expressed as a product of two prime numbers: 5 and 7. So, 35 = 5 × 7.

c. 38:
38 can be expressed as a product of two prime numbers: 2 and 19. So, 38 = 2 × 19.

d. 39:
39 can be expressed as a product of two prime numbers: 3 and 13. So, 39 = 3 × 13.

e. 46:
46 can be expressed as a product of two prime numbers: 2 and 23. So, 46 = 2 × 23.

f. 51:
51 can be expressed as a product of two prime numbers: 3 and 17. So, 51 = 3 × 17.

g. 58:
58 can be expressed as a product of two prime numbers: 2 and 29. So, 58 = 2 × 29.

h. 65:
65 can be expressed as a product of two prime numbers: 5 and 13. So, 65 = 5 × 13.

i. 77:
77 can be expressed as a product of two prime numbers: 7 and 11. So, 77 = 7 × 11.

j. 187:
187 can be expressed as a product of two prime numbers: 11 and 17. So, 187 = 11 × 17.

These decompositions show each number as a product of its prime factors.

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