Mathwarehouse Logo

Is 3990 a perfect number? [SOLVED]

Answer


3990 is not perfect because:

1 + 2 + 3 + 5 + 6 + 7 + 10 + 14 + 15 + 19 + 21 + 30 + 35 + 38 + 42 + 57 + 70 + 95 + 105 + 114 + 133 + 190 + 210 + 266 + 285 + 399 + 570 + 665 + 798 + 1330 + 1995 3990
Back to Is 3989 a perfect number? Next to Is 3991 a perfect number?