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Fallout 3 Hints
Which number should I click on?
1 of 7: To figure that out, you'll need to know how Prime's little number puzzle works.
2 of 7: Think about the guy's name. What kind of numbers are "prime?"
3 of 7: A prime number is one that can be divided evenly (no remainder) by only itself and 1.
4 of 7: So which of the four numbers you're shown is prime?
5 of 7: 30 obviously isn't, since it's an even number, and no even number (except 2) can ever be prime.
6 of 7: 9 isn't prime since it can be divided evenly by 3, and 49 isn't prime since it can be divided evenly by 7.
