Given that \(X\sim\text{B}\hspace{0.1em}(n,p)\) and \(\text{Var}\hspace{0.1em}(X)=\frac{2}{5}\text{E}\hspace{0.1em}(X)\), find the least value of \(n\) such that \(\text{P}\hspace{0.1em}(X\ge 1)>0.95\).
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