I was doing something related to Fermat primes, and noticed that my TI-84's interpretation of 2^2^5+1 isn't 4294967297 as I'd expect (famously divisible by 641), but rather 1025: It's interpreting it as ((2^2)^5)+1. How'd they get the order of operations wrong there?
TI 84 calculator oddity (or maybe error) - jon_leonard
30 December 2011 @ 10:21 pm
TI 84 calculator oddity (or maybe error)