A prime number is a number that is only divisible by one and itself, which is essentially saying that it has no divisor. That takes half of all possible numbers off the table right away (the evens), ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American When I saw a math paper with the phrase ...

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 ...

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Prime numbers, vital in mathematics and competitive exams, can be quickly identified using a systematic approach. This method involves checking divisibility by primes up to the square root of the ...

Prime numbers just got less lonely. A proof announced this week claims to show that the number of primes with a near-neighbour that is also a prime number is infinite – although the “near-neighbour” ...

The Great Internet Mersenne Prime Search (GIMPS) has discovered the new largest known prime number, having 22,338,618 digits, on a university computer volunteered by Curtis Cooper for the project. The ...