Puzzles/Arithmetical puzzles/Digits of the Square
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Puzzles | Arithmetical puzzles | Digits of the square
There is one four-digit whole number n, such that the last four digits of n² are in fact the original number n.
What is it?
Puzzles | Arithmetical puzzles | Digits of the square
There is one four-digit whole number n, such that the last four digits of n² are in fact the original number n.
What is it?