# Puzzles

## 121

Find a number base other than 10 in which 121 is a perfect square.

If you enjoyed this puzzle, check out Sunday Afternoon Maths XLIV,

puzzles about numbers, or a random puzzle.

puzzles about numbers, or a random puzzle.

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Find a number base other than 10 in which 121 is a perfect square.

If you enjoyed this puzzle, check out Sunday Afternoon Maths XLIV,

puzzles about numbers, or a random puzzle.

puzzles about numbers, or a random puzzle.

Not Roman numerals

Breaking Chocolate

Square and cube endings

List of all puzzles