263

This number is a prime.

Just showing those entries submitted by 'Loungrides': (Click here to show all)

+ The smallest Honaker prime that is a balanced prime. It is also the smallest Honaker prime p for which q=p^3+2 is an emirp (q=18191449). [Loungrides]

+ The only 3-digit prime whose the square, 69169, is a strobogrammatic number. Likely, 263 is the largest known prime with this property. [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)

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