Chatgpt sometimes can't gvie correct calculations

It’s my first chat with chatgpt on this day. I have gave a question regarding to chemistry.
Every thing is ok but when I made a calculation
q =300.0g×4.184J/g°C×4.37°C
𝑞=5265.672
q =5265.672J
But the answer is 5485.224 on this calculation.
Reasons will not be this
confusion : There is no possibility because its my first question and also first chat and even short answer not confusing one.
Then what will be reason may be it unable to bare lakhs of users at once or what ?

You use GPT3.5 its not that capable