Four fours update January 4, 2008Posted by Peter Hornby in Uncategorized.
I may have neglected to mention that one of the permitted Four Fours techniques is the use of ‘.4’. So, you can burn two fours on if you want. That’s not desperately interesting, since 10 is available other ways, but when you use it with the factorial, it can get you to places you can’t get to otherwise.
So, it turns out that
Dammit, this is like pulling teeth. I’m now staring at 1195, which is staring back at me with a mean, uncompromising expression.