What is the prime factorisation of 360?
A$2^3 \times 3 \times 5^2$
B$2^3 \times 3^2 \times 5$
C$2^2 \times 3^3 \times 5$
D$2 \times 3^2 \times 5^2$
Answer & Solution
Correct answer: B. $2^3 \times 3^2 \times 5$
360 = 8 × 45 = 2³ × 9 × 5 = 2³ × 3² × 5. Verify: 8 × 9 = 72, 72 × 5 = 360.
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