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June 8 Puzzle Reveals 410256 Number From 1983 Olympiad

6/9/2026

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Summary

Story summary

On June 8 2026 the author posted a puzzle seeking the number that starts with 4 and becomes a quarter of itself when the leading digit moves to the end.
The author confirmed the answer as N = 410256 after testing two- to five-digit candidates and using multiplication facts like 4 × 4 = 16 to determine each digit.
The puzzle traces to the 1983 Moscow Mathematical Olympiad and belongs to a series posted every other Monday since 2015.

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Story summary

On June 8 2026 the author posted a puzzle seeking the number that starts with 4 and becomes a quarter of itself when the leading digit moves to the end.
The author confirmed the answer as N = 410256 after testing two- to five-digit candidates and using multiplication facts like 4 × 4 = 16 to determine each digit.
The puzzle traces to the 1983 Moscow Mathematical Olympiad and belongs to a series posted every other Monday since 2015.