Which of the following is not the product of exactly three different prime factors?

A.
30
B.
70
C.
105
D.
175
Mathematics
Competition
Math League
Exam No:2020 First Round Grade 5 Year:2020 Question No:CompetitionMathematics2020​Competition​0105

Answer:

D

Knowledge points:

G5 - Number Theory - Prime Factorization (Factor Trees)

Solution:

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