Fibonacci Prime Test

The Fibonacci Prime Test checks if numbers are both Fibonacci and prime. Just paste your numbers or import them from a file, and the tool instantly shows you which ones qualify. You can trim extra whitespace, include explanations like “13 is a Fibonacci prime,” or show only the values that pass both tests.

It’s all done live, right in your browser. The interface reacts instantly, with no reloads or lag. And since everything runs client-side, your data never leaves your machine. Whether you’re filtering math sequences or just playing with patterns, the Fibonacci Prime Test makes it quick and effortless.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total items: 0
Options
Show only Fibonacci Primes
Trim whitespace
Include explanation

How to Use:

  1. Paste your numbers into the Input Numbers field, one per line.
  2. Or use Choose File to import a list from .txt, .csv, or other plain-text formats.
  3. Adjust the Options box:
    • Show only Fibonacci primes
    • Trim extra whitespace on each line
    • Add short explanations in the output
  4. The result appears instantly in the Fibonacci Prime Check Output box.
  5. Use Copy Output to copy the results or Export to File to save them.
  6. Hit Clear All to reset everything and start fresh.

What Fibonacci Prime Test can do:

This tool combines two checks in one Fibonacci and prime. It tests every line you input, filters according to your settings, and gives readable results. Want just the numbers that match? Turn on “Show only Fibonacci primes.” Want a clean breakdown of each value? Enable “Include explanation.” The counter below updates with each change so you know exactly how many matches you’ve got.

It’s smooth, flexible, and easy to customize. Tweak it how you like, and let the logic do the rest.

Example:

Input:

2
3
5
8
13
21
34
89
97

Output (with explanation ON):

2 is a Fibonacci prime
3 is a Fibonacci prime
5 is a Fibonacci prime
8 is not a Fibonacci prime
13 is a Fibonacci prime
21 is not a Fibonacci prime
34 is not a Fibonacci prime
89 is a Fibonacci prime
97 is not a Fibonacci prime

Output (with filters ON):

2 is a Fibonacci prime
3 is a Fibonacci prime
5 is a Fibonacci prime
13 is a Fibonacci prime
89 is a Fibonacci prime

Common Use Cases:

Perfect when you need to find which numbers in a set belong to both the Fibonacci sequence and the list of primes. The Fibonacci Prime Test is great for math experiments, educational checks, or just curious exploration. With live previews, import support, and instant results, it’s a fast way to dig into number patterns.

Useful Tools & Suggestions:

Try Lucas Prime Test if you want to explore another special category of primes with a Fibonacci-like vibe. And if you’re testing a list, Remove Line Numbers can clean things up fast before running your checks.

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