Prime Bear Animation

[crash893]

http://members.surfeu.fi/kklaine/primebear.html

[ewmayer]

Is it my imagination, or does the bear seem to have problems getting out the "irregular" primes?

[ixfd64]

*raises WTF flag*

[Primeinator]

That's funny. How high does it go I wonder?

[Xyzzy]

Originally Posted by Primeinator

That's funny. How high does it go I wonder?

I let it run for several weeks once and it kept on crapping out primes...

[rogue]

You can look at the page source and see that it doesn't use a sieve. It just divided each odd number by all odd numbers <= the square root. If none divide, then it is prime. I assume it fails at 2^31.

[patrik]

We need a Mersenne prime number bear.

Not a likely candidate for the screen saver some newcomers ask for. Even if the unsuccesful numbers were displayed, it would be one every three weeks, at most. (What's the English word for that medical condition?)

[ewmayer]

Originally Posted by patrik

We need a Mersenne prime number bear.

Not a likely candidate for the screen saver some newcomers ask for. Even if the unsuccesful numbers were displayed, it would be one every three weeks, at most. (What's the English word for that medical condition?)

log-arrhythmia?

[Merlin]

Originally Posted by rogue

You can look at the page source and see that it doesn't use a sieve. It just divided each odd number by all odd numbers <= the square root. If none divide, then it is prime. I assume it fails at 2^31.

Too funny. In junior high school I wrote a BASIC program with that same algorithm and ran it on the mainframe at the state university in town using a teletype terminal in the computer lab. As in, output was on a roll of paper. Computers were -- different -- in the 1970's. I didn't let it run long enough to see when it failed - I think it got unBEARably slow long before it broke.