No, but I can use a calculator to find the correct answer. It's quite easy in software because I can copy-and-paste the digits so I don't make any mistakes.
I just asked ChatGPT to do the calculation both by using a calculator and by using the algorithm step-by-step. In both cases it got the answer wrong, with different results each time.
More concerning, though, is that the answer was visually close to correct (it transposed some digits). This makes it especially hard to rely on because it's essentially lying about the fact it's using an algorithm and actually just predicting the number as a token.