Owlet puzzle #4
Released Thursday, July 9, 2026 UTC
6174
the answer for puzzle #4
The five clues
- A four-digit number.
- All four digits are distinct.
- Fixed point of a famous digit-arrangement routine.
- Named for an Indian mathematician who discovered the fixed point in 1949.
- Kaprekar's constant.
Backstory
Sort digits desc − sort digits asc; iterate; almost every 4-digit number lands on 6174 in ≤7 steps.
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