The number sequence 7688, 2688, 768, 336 … follows a specific pattern. What could the next numbers be?
From the second number onward, each number in the sequence is the product of the digits of its predecessor. The next two numbers are therefore 3 × 3 × 6 = 54 and 5 × 4 = 40. All subsequent numbers in the sequence are zeros.
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This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. It was translated from the original German version with the assistance of artificial intelligence and reviewed by our editors.