**Logical Number Problem - 25 March**

According to number theory of mathematics , a perfect number is a positive integer that is equal to the sum of its positive divisors excluding the number itself.

For example :

6 => 1+2+3

28 =>1+2+4+7+14

I know one more number that is a perfect number and contains not more than 2 digits (i.e 496 won't be consider as it contains 3 digits).

Find the number ?

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1

ReplyDelete12=> 1+2+3+6

ReplyDeleteYou forgot 4.

DeleteThere is no other 2 digit perfect number. The problem is incorrect.

32=>1+2+5+8+16

ReplyDeletethis is incorrect, 5 is not a divisor of 32 and you forgot 4 :)

DeleteThis comment has been removed by the author.

ReplyDeleteA perfect number is a +ve integer that is equal to the sum of all of its +ve divisors excluding the number itself.

ReplyDeletethen,12 is not equal to its +ve divisors,i.e.,1+2+3+4+6.

you forgot 4 and the number is 24 = 1 + 2+ 3+ 4+ 6 +8

ReplyDeletewhere is 12

Delete3 = 1 + 2

ReplyDeleteWrong.it has the factor 4 also.

ReplyDeletefactors of 12 are 12,6,4,3,2 and 1.1+2+3+4+6=16.Sum=16.not a Perfect number.Wrongly inserted.

ReplyDelete??????