Achilles number
= Achilles number
{c}
= Achilles
{c}
{synonym}
A <powerful number> that is not a <perfect power>. If $n=\prod_i p_i^{e_i}$ is its <prime factorization>, the conditions are $e_i\ge2$ for every $i$ and $\gcd(e_1,\ldots,e_k)=1$.
= Achilles number
{c}
= Achilles
{c}
{synonym}
A <powerful number> that is not a <perfect power>. If $n=\prod_i p_i^{e_i}$ is its <prime factorization>, the conditions are $e_i\ge2$ for every $i$ and $\gcd(e_1,\ldots,e_k)=1$.