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Cube and Cube Roots — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSCube and Cube Roots1 Mark
MCQ
Which of these numbers is not a cube number?
  • A
    $343$
  • B
    $729$
  • ✓
    $10000$
  • D
    $64$
✓

Answer

Correct option: C.
$10000$
By prime factorisation method.
$10000 = 2 \times 2 \times 2 \times 2 \times 5 \times 5 \times 5 \times 5.$
$= 2^4 \times 5^4 = 2^3 \times 2 \times 5^3 \times 5$

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