Least Common Multiple

Q : Write a program to input two numbers and find out Least Common Multiple?

The smallest positive number that is a multiple of two or more numbers.

Solution : 

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     Girfa Student Help

     LCM

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Greatest Common Factor

Q : Write a program to calculate Greatest Common Factor ?

The highest number that divides exactly into two or more numbers. It is the "greatest" thing for simplifying fractions!

Greatest Common Factor of 12 and 16 is 4 because after 4 there is not any number which devide both 12 and 16.

Solution : 

/*   ################################

     Girfa Student Help

     HCF

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Perfect Number C Language Program

Q: Write a program to check whether a number is prime or not?
(A number said to be perfect if sum of all factor less than given number then equal to given number)Input : 6

Solution : 

/*   ################################

     Girfa Student Help

     Perfect Number

     for more visit : http://girfahelp.blogspot.in/p/c-language.html

     ################################

*/

#include<stdio.h>

Product of digit

Q : Write a program to calculate product of digit of a given page ?

Solution :