It can't be expressed as a whole number. The square root of two is irrational, and the product of an irrational number and a rational number is also irrational. So 8*sqrt(2) is irrational.
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The nearest whole number would be 3. The square root of 8 is approximately 2.82842712474619
8
The square root of 8 is irrational and real.
0.2857
Is 8 1/2 a whole number