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Question
Factorise the following number into prime.
216
Solution
216 = 2 × 108
= 2 × 2 × 54
= 2 × 2 × 2 × 27
= 2 × 2 × 2 × 3 × 9
= 2 × 2 × 2 × 3 × 3 × 3
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