Answer
750 is not perfect because:
1 + 2 + 3 + 5 + 6 + 10 + 15 + 25 + 30 + 50 + 75 + 125 + 150 + 250 + 375 ≠ 750
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Answer
750 is not perfect because:
1 + 2 + 3 + 5 + 6 + 10 + 15 + 25 + 30 + 50 + 75 + 125 + 150 + 250 + 375 ≠ 750