David Meyer on Nostr: Here's another interesting thing I just noticed about the number 2025: 45² = 2025. ...

Here's another interesting thing I just noticed about the number 2025: 45² = 2025.

What is interesting about the square of 45 (2025) is that if you split 2025 into 20 and 25, you notice that 20 + 25 = 45 making 45 a Kaprekar number.

#kaprekarnumber #numbertheory #math #maths

References
------------
[1] "Kaprekar number", https://en.wikipedia.org/wiki/Kaprekar_number

[2] "Kaprekar numbers", https://oeis.org/A006886