MBA Exam

A number has exactly 32 factors out of which 4 are not composite. Product of these 4 factors(which are not composite) is 30. How many such numbers are possible?

1) 2
2) 4
3) 6
4) 3
5) Not possible.

Read Solution (Total 1)

6

30 = 1*2*3*5

Suppose the number is 2^a * 3^b * 5^c

(a+1)*(b+1)*(c+1)= 32 = 2*4*4 or 2*2*8

Possibilities are 6 .
So 6 numbers are possible.
11 years agoHelpfull: Yes(1) No(0)

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