[FurryRock]

2^3^4 = 2^81 = 2.417852×10^24
(2^3)^4 = 2^3*4 = 2^12 = 4096

The two things are widely different, that's why you get different answers

Got me @FurryRock

Man I need to go back to 9th grade, it looks like with knowledge of PEMDAS that the first equation would be:
2^3^4
8^4
4096

But apparently you need to solve 3^4 first, yeah I need to go back to school. Thanks tho.