New Scientist Enigma 579 – The Great Divide
by Susan Denham
From Issue #1732, 1st September 1990
In the two division sums below, the six-figure dividend is the same but the divisor and the answer have been interchanged (that is, the first is x ÷ y = z and the second is x ÷ z = y). No digit occurs in both the divisor and the answer, and no digit in the dividend is used in either the divisor or the answer.
What is the dividend?