@property
    def is_zero(self):  # Factors
        """
        >>> from sympy.core.exprtools import Factors
        >>> Factors(0).is_zero
        True
        """
        f = self.factors
        return len(f) == 1 and S.Zero in f
dataset/ETHPy150Open sympy/sympy/sympy/core/exprtools.py/Factors.is_zero/original