The least number, by which 1944 must be multiplied so as

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The least number, by which 1944 must be multiplied so as to make the result a perfect cube, is

∴ 1944 = 2×2×2×3×3×3×3×3
= 2³ × 3³ × 3²
Clearly, 1944 should be multiplied by 3 to make the result a perfect cube.