Click the flag, and watch it guess.
If you're not sure how big a googol is, it's a one followed by one hundred zeroes. Here it is written out: 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Also, Scratch likes to display extremely large numbers in scientific formatting. That won't affect the guessing, because when it displays small numbers like 1, it displays them normally.