what does it mean when you type in an equation and it gives you an answer like this 3.7199333e+41?

Scientific notation, it means that the result is insanly big and therefore, the calculador simplifies it

2.56e+2 = 256

3.5647e+4= 35647

This is equal to

2.56*10^2

So what your calculator is actually saying is

3.7199333*10^41

Which equals

371993330000000000000000000000000000000000