8
9
27
4 Answers
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You can also break numbers down into their prime factors:
54 = 2*27 = 2*3*3*3 so ∛54 = 3∛2
so 3³ is only cube root
27 is the only perfect cube.
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27 is a factor of 54
3³ = 27
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54 = 27 x 2, so the answer is 27
(you mean cube, not cube root)
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all of those are perfect cube ROOTS.