even-perfect-numbers-scanner/PerfectNumbers.Core/HeuristicFailureReason.cs

namespace PerfectNumbers.Core
{
    internal enum HeuristicFailureReason
    {
        PhiPartialFactorizationFailed,
        StrictModeRequested,
        HeuristicPipelineUnresolved,
        HeuristicPipelineAssumedFullOrder,
    }

}