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Problem 33 : Pandigital Products

The fraction $49/98$ is a curious fraction, as an inexperienced mathematician in attempting to simplify it may incorrectly believe that $49/98 = 4/8$, which is correct, is obtained by cancelling the $9$s.

We shall consider fractions like, $30/50 = 3/5$, to be trivial examples.

There are exactly four non-trivial examples of this type of fraction, less than one in value, and containing two digits in the numerator and denominator.

If the product of these four fractions is given in its lowest common terms, find the value of the denominator.

Expected Output

Published:	Friday, 20th December 2002, 01:00 pm
Difficulty rating:	5%
Overview (PDF):	problem 33
Forum problem:	problem 33