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Actually, there's only one palindromic prime that satisfy that condition: the number 11.All other palindromic numbers with an even number of digits are composites.
Can you demonstrate this for all numbers? ;-) (Certainly, very interesting)
The number 3 in binary satisfy de condition (is 11 in binary)No eight-digit binary number that is prime, ispalindrome than 11!! (isn't it?)
In hexa 100 prime numbers (in hexa) only 11 !!!Is the definition ofa prime number the number that is 11 in some base, or the prime palindroms in all the bases??? ;-)jajajajajaja
Check the following 2 proofs athttp://users.skynet.be/worldofnumbers/palprim1.htm
ZEN-KIU (Thanks) SIR!!!!!