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256

128 x 2

64 x 2 x 2

32 x 2 x 2 x 2

16 x 2 x 2 x 2 x 2

....

(2 x 2 x 2 x 2) x (2 x 2 x 2 x 2)

So

16 x 16 = 256

So Sqrt (256) = 16.

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12y ago
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Q: What is the Square Root of 256 using a Factor Tree?
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