If we multiply 32547891 by 6, we get the product, 195287346. In both cases all the nine digits are used once and once only.
86.--QUEER MULTIPLICATION.
From Amusements in Mathematics by Henry Ernest Dudeney.
From Amusements in Mathematics by Henry Ernest Dudeney.
If we multiply 32547891 by 6, we get the product, 195287346. In both cases all the nine digits are used once and once only.