if p is the smallest prime factor of 511, then
a. 18 ≤ p ≤ 23
b. 10 ≤ p ≤ 17
c. 3 ≤ p ≤ 9
d. none of these

Respuesta :

Answer:

C. [tex]3 \le p \le 9[/tex]

Step-by-step explanation:

The prime factor decomposition of 511 is [tex]7\times 73[/tex], where 7 is the smallest prime factor. Hence, the correct answer is C.