0
1
4
9
16
25
36
49
64
81
100
121
144
169
196
225
256
289
324
361
400
------------
The above numbers are squares not perfect numbers. A perfect number n is one that is equal to the proper divisors of n. Here are the first few:
6
28
496
8128
33550336
8589869056
137438691328
2305843008139952128
2658455991569831744654692615953842176
191561942608236107294793378084303638130997321548169216
I don't know if more of them are known. For more information see oeis.org.
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Earn +20 ptsQ: What are the first 20 perfect numbers?
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Continue Learning about Math & Arithmetic
What are the perfect numbers between 1 and 20?
Just 6
What are the first 20 odd numbers?
The first 20 odd numbers are: 13579111315171921232527293133353739.
How many numbers between 20 and 30 are perfect square?
4
Is 495 a perfect number?
No, it isn't. In fact, it is not known whether are odd perfect numbers exist. The first perfect numbers are 6, 28, 496, and 8128.
What are all the perfect numbers between 20 and 30?
only 28 bro
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