# Is 36 a perfect square?

Yes. $36 = {6}^{2}$
Perfect squares are natural numbers $m$ such that there is another natural number $n$ with the property that ${n}^{2} = m$.
${1}^{2} = 1$, ${2}^{2} = 4$, ${3}^{2} = 9$, ${4}^{2} = 16$, ${5}^{2} = 25$, ${6}^{2} = 36$, ${7}^{2} = 49$, ${8}^{2} = 64$, ${9}^{2} = 81$, ${10}^{2} = 100$, ${11}^{2} = 121$, ${12}^{2} = 144$, ${13}^{2} = 169$, ${14}^{2} = 196$, ${15}^{2} = 225$, ${16}^{2} = 256$, ${17}^{2} = 289$, ${18}^{2} = 324$, ${19}^{2} = 361$, and ${20}^{2} = 400$.