Lots of mathematians here trying to find new prime numbers i see
If you want a proper burn test in that manner, go run Firestarter. Check the way it loads your CPU versus IBT.
I might drag out my abacus tomorrow, obsolete tools seem to be all the rage here. It doesn't have the capability to push the CPU correctly, using an imperfect tool to crash your machine is exactly that.
There are many better tools.
I use whatever i can to try and make my rig fall over. Who are you to say otherwise?