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Math Topics: Unit Conversions, Calculus & Puzzles

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Next number in the series .. 77, 49, 36 , 18 __

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A
8
💡 Explanation:

Each term after the first is the product of the digits of the previous term. So 77 → 7×7=49 → 4×9=36 → 3×6=18 → 1×8=8

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