Problem 1257
Two primes are called sixy primes if they differ by 6. For example, 5 and 11 are sixy primes. Find the sum of the digits of the smaller value of the last pair of sixy primes under 10,000.
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Two primes are called sixy primes if they differ by 6. For example, 5 and 11 are sixy primes. Find the sum of the digits of the smaller value of the last pair of sixy primes under 10,000.
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