This month, GIMPS, the Great Internet Mersenne Prime Search, announced the discovery of the largest known prime number: 2<sup>74,207,281</sup>-1. That's two, multiplied 74,207,281 times, with 1 ...
Is 170,141,183,460,469,231,731,687,303,715,884,105,727 prime? Before you ask the Internet for an answer, can you consider how you might answer that question without a ...
Prime numbers are tricky things. We learn in school that they’re numbers with no factors other than 1 and themselves, and that mathematicians have known for thousands of years that an infinite number ...
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