Find the value of ^@\sqrt[3]{ -1728}^@ .
 
                Answer: 
            
        ^@-12^@
- Let's first find all prime factors of ^@1728^@.
 ^@1728 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 3 \times 3 \times 3^@
- Now, ^@\sqrt[3]{ -1728}^@
 ^@ = -1 × \sqrt[3]{ 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 3 \times 3 \times 3 } \\ = -1 × \sqrt[3]{ 2^3 \times 2^3 \times 3^3 } \\ = -1 × 2 × 2 × 3 \\ = -12^@
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