353

Number
$353$ (three hundred and fifty-three) is:


 * The $71$st prime number


 * The $1$st positive integer such that its fourth power is the sum of $4$ other fourth powers of positive integers with no common factors:
 * $353^4 = 30^4 + 120^4 + 272^4 + 315^4$


 * The $11$th Proth prime after $3$, $5$, $13$, $17$, $41$, $97$, $113$, $193$, $241$, $257$:
 * $353 = 11 \times 2^5 + 1$


 * The $12$th palindromic prime:
 * $2$, $3$, $5$, $7$, $11$, $101$, $131$, $151$, $181$, $191$, $313$, $353$, $\ldots$


 * The $27$th left-truncatable prime after $2$, $3$, $5$, $7$, $\ldots$, $197$, $223$, $283$, $313$, $317$, $337$, $347$

Also see