what is answer for perfect number????????????????



what is answer for perfect number????????????????..

Answer / david uwihoreye

Perfect number is a positive number which sum of all
positive divisors excluding that number is equal to that
number. For example 6 is perfect number since divisor of 6
are 1, 2 and 3. Sum of its divisor is
1 + 2+ 3 =6

Note: 6 is the smallest perfect number.

Next perfect number is 28 since 1+ 2 + 4 + 7 + 14 = 28
Some more perfect numbers: 496, 8128

Is This Answer Correct ?    5 Yes 0 No

Post New Answer

More C Interview Questions

writw a program to insert an element in the begning of a doubly linked list

1 Answers  


What is the output of the following progarm? #include<stdio.h> main( ) { int x,y=10; x=4; y=fact(x); printf(ā€œ%d\nā€,y); } unsigned int fact(int x) { return(x*fact(x-1)); } A. 24 B. 10 C. 4 D. none

2 Answers  


What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

0 Answers   Google,


will u give me old quesrion papers for aptitude for L & t info tech?

1 Answers   Hindustan, L&T,


here is a link to download Let_Us_C_-_Yashwant_Kanetkar

3 Answers   Microsoft,






we need to calculating INCOME TAX for the person. The INCOME TAX is as follows:- First $10000/- of income : 4% tax Next $10000/- of income : 8% tax Next $10000/- of income : 11.5% tax above $10, 00,00/- : 15% tax What is the Solution of this Question ?

0 Answers  


void main() { int a=1; printf("%d %d %d",a,++a,a++); } the output is supposed to be 1 2 2....but it is 3 3 1 this is due to calling conventions of C. if anyone can explain me how it happens?

7 Answers  


What is atoi and atof in c?

0 Answers  


Find errors (1) m = ++a*5; (2) a = b ++ -c*2; (3)y = sqrt (1000);

5 Answers  


how to write a cprogram yo get output in the form * *** ***** ******* ********* ******* ***** *** *

3 Answers  


define switch statement?

6 Answers   CTS,


What is the difference between int main and void main?

0 Answers  


Categories