Question 497191
1+1 = 2, multiply that by 1+1. I'm pretty sure you can repeat functions by repeatedly pressing =, so you can get 2, 4, 8, 16. Subtract 1 to get 15. Multiply by 1+1+1+1+1 to get 75.


There's probably a faster way to do this, and one that requires less than 20 keystrokes. Try it and see.