Generate Magic Numbers

Generate Magic Numbers checks each value in your input to see if it’s a magic number meaning the recursive sum of its digits eventually reduces to 1. Paste numbers, import files, and get labeled results right away. It’s all done in your browser.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .log, .json, .md, .ini
Total items: 0
Options
Trim whitespace
Ignore empty lines
Show only magic numbers

How to Use:

  1. Paste your list of numbers into the input box.
  2. Or import a file using the Choose File button.
  3. Use the toggles to trim whitespace, ignore blanks, or only show valid magic numbers.
  4. View your results on the right they update instantly.
  5. Copy or export the output once you’re done.

What Generate Magic Numbers can do:

Generate Magic Numbers lets you drop in a list of values and find out which ones are magic. A number is magic if you keep adding its digits until only one remains and that final result is 1. You don’t need to calculate anything yourself. Just paste or import your list and see what makes the cut.

Example:

Input:

3
1729
89
145

Output:

3 → Magic Number
1729 → Magic Number
89 → Not Magic
145 → Not Magic

Common Use Cases:

Generate Magic Numbers is useful in math-themed apps, puzzles, or number analysis tools. It helps you filter meaningful values from random lists, or just lets you experiment with fun numerical properties.

Useful Tools & Suggestions:

Magic numbers get even more interesting when you bring in Calculate Fibonacci Numbers to compare how patterns line up. And if you’re digging into sequences, Generate Look-and-Say Numbers is another quirky one with a surprising structure behind it.

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