No, it is in between 3 and 4
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No. A natural number is a whole number, that is, no digits after the decimal point. Calculate the square root of 12 on a calculator, and you will see that it is not a whole number.
12, -12
130
sqrt(156) = 12.489996 (rounded)Rounded to the nearest whole number, that's 12.
The closest whole number square root is 12, since 12 x 12 = 144. The next closest are 13 x 13 = 169 or 11 x 11 = 121.