Question 421474
PQRST9875 = PQRST0000 + 9875.

Now {{{(PQRST9875)/625 = (PQRST0000)/625 + 9875/625}}}.
==> PQRST0000/625 is a positive integer, whereas 9875/625 = 79/5 in lowest terms.  Hence {{{(PQRST9875)/625}}} is not a positive integer.