Hi, things are going well, but notice the “// noprotect” instruction when you do the “Smallest Common Multiple” or you may never finish it…
What I am getting after finishing this exercise with success is that after validation a pop up turns into a non-stop dancing ball and doesn’t go into my next challenge … it’s the second time I get it and what is this supposed to be? probably it will go away after I validate it a few more times 
Best regards,
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After almost 2 hours I decided to use Chromium and it submitted fine… maybe Hyper Combo translates into using a different browser?