$\sqrt{1024}$ equals

$\sqrt{1024}$ equals
  1. $32$
  2. $30$
  3. $34$
  4. $28$

Solution

$32^{2} = 1024$ (or factorise: $1024 = 2^{10}$, so $\sqrt{1024} = 2^{5} = 32$).

Asked in: IMO

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