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1. bi-quad bi-quad Public

   Exhaustive search for prime palindromes & bi-quadratic emirps on the curve 2n^2+2n+1 = n^2+(n+1)^2 (sums of two consecutive squares). GMP + OpenMP; home of a 27-year prime-palindrome conjecture.

   C

2. bigdec2hex bigdec2hex Public

   Converts arbitrarily large decimal integers to hexadecimal using string arithmetic

   Shell

3. bigint-mul bigint-mul Public

   Two C implementations of large integer multiplication: schoolbook string arithmetic and 64-bit limb multiply via __uint128_t

   C

4. cvpipe cvpipe Public

   Pipeline search for converse primes (predecessor to bi-quad). Zone-skip breakthrough: 62.8M× speedup verified.

   C