2006-12-20 18:30:45 · 10 answers · asked by HEMANT F 1 in Science & Mathematics ➔ Mathematics
zero
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2006-12-20 18:32:08 · answer #1 · answered by Anonymous · 0⤊ 2⤋
A perfect number is a whole number, an integer greater than zero and when you add up all of the factors less than that number, you get that number.
Examples
The factors of 6 are 1, 2, 3 and 6.
1 + 2 + 3 = 6
The factors of 28 are 1, 2, 4, 7, 14 and 28.
1 + 2 + 4 + 7 + 14 = 28
The factors of 496 are 1, 2, 4, 8, 16, 31, 62, 124, 248 and 496.
1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248 = 496
2006-12-23 01:24:53 · answer #2 · answered by Kinu Sharma 2 · 0⤊ 0⤋
It's a number that is the sum of the factors of the number itself.
E.g. 28=1+2+4+7+14
6=1+2+3
2006-12-22 08:02:11 · answer #3 · answered by Peace Sells....and im buying! 6 · 0⤊ 0⤋
Perfect number, in mathematics, does not talk about being a perfect thing but rather it refers to a number whose sums of its proper factor (factors of a number excluding the number itself) is equal to the number. Examples are 6 and 28. The proper factors of 6 are 1, 2, and 3 and 6 = 1 + 2 + 3. Also for 28, factors are, 1, 2, 4, 7, 14 and 28 = 1 + 2 + 4 + 7 + 14.
Got it?
2006-12-21 05:36:16 · answer #4 · answered by Sheila 2 · 0⤊ 1⤋
A perfect number one such that the sum of its factor (not including itself) is equal to itself.
Example: 6 is a perfect number, because the factors of 6 are {1, 2, 3} and 1+2+3 = 6.
Another example is 28.
The factors of 28 less than 28 are: 1, 2, 4, 7, 14
1+2+4+7+14 =
3+4+7+14 =
7+7+14 =
14+14 = 28
2006-12-21 02:33:55 · answer #5 · answered by Puggy 7 · 3⤊ 1⤋
10
2006-12-21 16:12:59 · answer #6 · answered by Anonymous · 0⤊ 1⤋
From Wolfram:
A perfect number is a number which is the sum of its proper divisors. "The first few perfect numbers with their corresponding indices, p, are:
n p N
1.. 2 6
2.. 3 28
3.. 5 496
4.. 7 8,128
5 13 33,550,336
6 17 8,589,869,056
7 19 137,438,691,328
8 31 2,305,843,008,139,952,128 "
2006-12-21 03:11:36 · answer #7 · answered by Helmut 7 · 0⤊ 1⤋
THE PERFECT NUMBER! 777
or 888
2006-12-21 02:38:13 · answer #8 · answered by Anonymous · 0⤊ 3⤋
578457934572975275759728785747529745975764990, I rounded it.
2006-12-21 02:39:07 · answer #9 · answered by ill take it straight with no ice 3 · 0⤊ 1⤋
NONE
2006-12-23 08:43:10 · answer #10 · answered by ASHWIN R 2 · 0⤊ 0⤋