allery256 = 2x2x2x2x2x2x2x2. Pairing the factors, its square root is:
A18
B32
C64
D16
Answer & Solution
Correct answer: D. 16
1. Eight 2s make four pairs.
2. Take one 2 from each pair.
3. 2 x 2 x 2 x 2 is 16.
_Source: syllabus Mathematics, Chapter 6, Squares and Square Roots._
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