hallkadaycia07 hallkadaycia07

03-09-2021
Mathematics

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4. The number 4 is the smallest positive integer that has exactly three factors: 1, 2, and 4. If kis the next-
highest integer that also has exactly three factors, what is the sum of the three factors of K?
F. 13
G. 14
H. 16
J. 18
K. 20

Respuesta :

03-09-2021

Answer: F: 13

Step-by-step explanation:

All positive integer having exactly 3 factors are square of a prime number:

2²,3²,5²,7²,11²,13²,17²,...

The next highest integer that also has exactly three factors is 3²=9

Sum of divisors=1+3+9=13

Answer 13

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