I often have to generate random prime numbers so I created this simple utility that does it for me. It lets you generate as many random primes as you need from the given range. It works in the browser and is powered by alien technology from the future.
This random prime number generator works entirely in your browser and is written in JavaScript. First, it generates a list of possible prime values starting from start and ending with end (range values specified in options). These are all numbers that are not divisible by 2 or 3. Then, it uses the Math.random() function to select random values from this list and calls the isPrime() function to check whether this number is actually a prime. It repeats this process until the output list has as many primes as you specified in the count option. Finally, it uses the join() function to separate all randomly selected primes by the specified separator character in options.
This random prime generator was created by me and my team at Browserling. Behind the scenes, it's actually powered by our web developer tools that are used by millions of people every month. Browserling itself is an online cross-browser testing service powered by alien technology. Check it out!