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].
Q8.
Write a C program to find the factorial of a number using for loops.
[Hint:
       fact =1.
       for(i=1; i<=n; i++)
       fact = fact * i.
       printf fact.              
].

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Q9.
Write a C program to compute the 100th triangular number. A triangular number is obtained by
adding the integers from 1 up to 100.
[Hint:
    main( )
       {
         int n, triangular_number;
         triangular_number = 0;
         for( n=1; n <=100; n = n + 1)
         triangular_number = triangular_number + n;
         printf(“The 100
th
 triangular number is %d\n”, triangular_number);
         }           
].
Q10.
Modify the program in Q9 to generate the table of triangular numbers.
Q11.
Write a C program to find the GCD of two numbers, u and v.
[Hint:
      /* say two numbers are u and v */
      while ( v != 0)
       {
         temp = u % v;
         u = v;
         v = temp;
       }
      printf(“GCD is %d, u);