Penholodigital Properties of 123,456,789/Examples/8

Puzzle

Place in a row $9$ digits each different from the others.

Multiply them by $8$, and the product shall still consist of $9$ different digits.

Solution

$123 \, 456 , 789 \times 8 = 987 \, 654 \, 312$

Sources

• 1821: John Jackson: Rational Amusement for Winter Evenings
• 1992: David Wells: Curious and Interesting Puzzles ... (previous) ... (next): Rational Amusements for Winter Evenings: $150$