Russell found that
there are just twelve
the peculiarity that the first two figures multiplied by the last
three—all the figures being different, and there being no
produce a number with exactly the same five figures, in a different
But only one of
these twelve begins with a
if we multiply 14 by 926, the result is 12964, which contains the same
The number of the motor-car was therefore 14926.
Here are the other
51246, 57834, 75231,
78624, 87435, 72936, 65281, 65983, and 86251.