Oct 22, 2026
Optimal: 4
digits
Target Number
138
Solo Digit: 4
0
Waiting for input
Digits Used: 0
This daily math puzzle was featured on Oct 22, 2026 (2026-10-22). Players are challenged to reach the target number 138 using only the single digit 4.
Daily puzzles are generated with a mathematical guarantee that an optimal solution exists between 3 and 6 digits. Look for factorials (such as 4! = 24 or 5! = 120) or square roots to quickly leap across large numerical distances.