N(A)-Level Mathematics Practice Questions - Singapore-Cambridge GCE Normal (Academic) Level Mathematics (Syllabus 4045) Exam

Express 84 as a product of its prime factors.

2 × 3 × 7 2^2 × 21 2^2 × 3 × 7 2 × 42

Correct Answer:

2^2 × 3 × 7

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