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A cool prime number (Posted on 2011-01-27) Difficulty: 2 of 5
My friend was thinking of a 3-digit prime number. I asked him, "What are the last two digits of your number?" He answered, and I knew what the number was. What was the number?

See The Solution Submitted by Math Man    
Rating: 4.0000 (2 votes)

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Solution Solution (Using Excel) | Comment 1 of 3
  Posted by hoodat on 2011-01-27 15:13:26
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