PHP 忒聊 綴豖 ヶ輛 gmp_gcd (PHP 4 = 4.0.4) Description Calculate greatest common divisor of a and b. The result is always positive even if either of, or both, input operands are negative. 綴豖 れ萸 ヶ輛 gmp_fact 奻珨撰 gmp_gcdext