Saturation vapour pressure equation formula

[Physics rookie1]

Pws=1000⋅e[[52.58]-[6790.5/T]-[5.028lnT]]
T= temprerature in Kelvin
Pws= Saturation vapour pressure
I plugged in my temperature to the formula in Kelvin, I couldn't arrive at the correct answer. How do you get the e value of the equation (superscript above).
My problem could be the trigonometry, or the unit conversion? I am inviting anyone who is knowledgeable with this subject matter. Thank you.

 

[insightful]

I assume this is Pws=1000e^{(52.58-6790.5/T-5.028lnT)} where e is 2.71828 as in ln(e)=1.

What answer did you get for what T?