A) 4
B) 6
C) 7
D) 8
Correct Answer: B
Solution :
\[1440=2\times 2\times 2\times 2\times 2\times 3\times 3\times 5={{2}^{3}}\times {{2}^{3}}\times {{3}^{2}}\times 5\]To make 1440 a perfect cube, it must be multiplied by\[2\times 3\times 5\times 5=150\] \[\therefore \] The required sum \[=1+5+0=6\]You need to login to perform this action.
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