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| Guru | Accepted answer and score of 40 or more. This badge can be awarded multiple times. |
Brian M. Scott earned this badge 6 times |
feb 21 at 21:47
What's next in this number series?
feb 6 at 7:48
Unusual 5th grade problem, how to solve it
oct 19 at 9:17
Does Pi contain all possible number combinations?