Generate Fibonacci Primes
Find numbers that are both Fibonacci numbers and primes. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Generate Fibonacci Primes
- 1. Set how many primes to find. Enter the How many primes value to choose how many Fibonacci numbers that are also prime should be generated. Nothing needs to be pasted since the list is computed directly.
- 2. Choose a separator. Pick the Separator that joins the resulting numbers, such as a comma or newline, matching the format you need for a spreadsheet or script.
- 3. Copy the Fibonacci primes. Copy the resulting list of numbers that are both Fibonacci numbers and prime, referenced in OEIS as A005478, into your notes or research.
When to use Generate Fibonacci Primes
Generate Fibonacci Primes lists numbers that satisfy both properties at once: they belong to the Fibonacci sequence and are also prime. It is aimed at anyone studying the overlap between these two well-known number families.
- Researching a number theory topic. You are writing a paper or blog post about the rarity of Fibonacci primes and need a verified list of the first several terms to cite alongside their OEIS reference.
- Building a math trivia quiz. A quiz app or puzzle set wants questions about numbers that are simultaneously Fibonacci and prime, and needs a correct answer list to draw from.
- Testing a combined primality and sequence check. A developer writing code that filters a Fibonacci sequence by primality wants a trusted expected output to validate their filtering logic against.
- Exploring OEIS sequence A005478. Someone studying OEIS entry A005478 wants to generate more terms than are listed on the page to look for patterns in the gaps between them.
Examples
The first nine Fibonacci primes
Output
2, 3, 5, 13, 89, 233, 1597, 28657, 514229
About the Generate Fibonacci Primes tool
Generate Fibonacci Primes does its work locally, right in the browser. Find numbers that are both Fibonacci numbers and primes. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Number Tools collection on EditSafely, a set of 194 small, focused Number utilities that share the same instant, private workspace.
You can shape the output with 2 settings, including How many primes and Separator, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Generate Fibonacci Primes free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.