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1)Cube of n = n³
2) Perfect squares:16,25,36,64,81
Perfect cubes:27,64.
3)Unit digit of (2019)³ = 9.
4)3¹¹=3³.3⁴.3⁴
=27×81×81
=27×6561
=...........7.
5)1=1³,1000=10³
Therefore,there are 8 perfect cube numbers between 1 and 1000.
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