/* Token delimiters when reading from a file. */
#define DELIM "\n\t "
-/* FIXME: if this program is ever modified to factor integers larger
- than 2^128, this constant (and the algorithm :-) will have to change. */
-#define MAX_N_FACTORS 128
+/* The maximum number of factors, including -1, for negative numbers. */
+#define MAX_N_FACTORS (sizeof (uintmax_t) * CHAR_BIT)
/* The trial divisor increment wheel. Use it to skip over divisors that
are composites of 2, 3, 5, 7, or 11. The part from WHEEL_START up to