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PUZZLET 139

Palindromes from Twin Primes

Adjacent primes are two prime numbers between which there are no other primes, such as 13 and 17. The two adjacent primes 4219 and 4229 sum to 8448, a numerical palindrome. Find all other adjacent pairs of 4-digit primes whose sums  have  the same characteristic.
formula


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Last Updated: January 14th, 2010.