bigll.c no compiler options, using long long sizeof(int)=4, sizeof(int1)=4 sizeof(long)=4, sizeof(long1)=4 sizeof(long long)=8, sizeof(llong1)=8 sizeof(float)=4, sizeof(fl1)=4 sizeof(double)=8, sizeof(d1)=8 sizeof(size_t)=4, sizeof(sz1)=4 sizeof(int *)=4, sizeof(p1)=4 n factorial using long long 0 ! = 1 1 ! = 1 2 ! = 2 3 ! = 6 4 ! = 24 5 ! = 120 6 ! = 720 7 ! = 5040 8 ! = 40320 9 ! = 362880 10 ! = 3628800 11 ! = 39916800 12 ! = 479001600 13 ! = 6227020800 14 ! = 87178291200 15 ! = 1307674368000 16 ! = 20922789888000 17 ! = 355687428096000 18 ! = 6402373705728000 19 ! = 121645100408832000 20 ! = 2432902008176640000 21 ! = -4249290049419214848 22 ! = -1250660718674968576 23 ! = 8128291617894825984 24 ! = -7835185981329244160