pear/math_biginteger
Pure-PHP arbitrary-precision integer library, the PEAR Math_BigInteger port. Adds, subtracts, multiplies, divides, powers, modPow, gcd, and random generation across bases, with optional GMP/BCMath acceleration. Useful for RSA, crypto, and big-number math without native extension requirements.
Pure-PHP arbitrary precission integer arithmetic library. If GMP or BCMath are available they are used.
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