perplexus.info :: Numbers : Mirror, mirror

Mirror, mirror (Posted on 2012-05-04)

What palindromic prime number of n digits reads the same upside down or when viewed in a mirror?

Some examples for n=2 or 3:
11, 101, 181.

How far can you go?

Rem: Only digits 0,l and 8 qualify.

No Solution Yet Submitted by Ady TZIDON

Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: computer solution -- count by length	Charlie	2012-05-04 16:39:02
computer solution	Charlie	2012-05-04 13:02:36
re: A quick note and some Links (spoilers)	Ady TZIDON	2012-05-04 11:56:04
A quick note and some Links (spoilers)	Jer	2012-05-04 11:21:40

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