{"id":"perfect-number-uses-isqrt","text":"`checkPerfectNumber` uses `math.isqrt` instead of `int(math.sqrt(n))` to avoid floating-point precision loss for large integers near 2^53.","truth_value":"IN","source":"entries/2026/06/06/perfect-number-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"perfect-number-uses-isqrt","truth_value":"IN","reason":"premise"}]}}