Number Series Puzzles · Billy-B
Number Series #31
From Billy-B's legendary 1001 Puzzle Collection — preserved on Puzz.com since 1998.
Puzzle #31
Looking back on it, this series makes perfect sense. 8 65 293 4472 80291 ?
Reveal Answer
654431. Each number is shown in reverse — After 8, each number represents the product after 8 is consecutively multiplied by 7.
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