The best estimate is the true value.512 = 2^9 = 2^7*2^2 = 128*4
Then 512*25 = (128*4)*25 = 128*(4*25) = 128*100 = 12800.
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512 is a not perfect square.
The cube root of -512 is: -8
The square roots of 262144 are 512 and -512.
512 has only one prime factor: 2
512 in standard form is 5.12 × 102