sympy__sympy-18199

nthroot_mod function misses one root of x = 0 mod p.

Verdict: the issue points to the file or function that was changed (Tier B).

When in the equation x**n = a mod p , when a % p == 0. Then x = 0 mod p is also a root of this equation.

The two checks disagreed (stated fix vs. points to it); the lower reading shown: “When in the equation x**n = a mod p , when a % p == 0. Then x = 0 mod p is also a root of this equation.”

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