Find one million consecutive positive numbers, none of which are prime.

Prime numbers are a central topic of study in math. Despite being an object of fascination for millennia, ... The prime number written in decimal as 31 is written in binary as 11111.

Math historian Peter S. Rudman suggests that Greek mathematicians were likely the first to understand the concept of prime numbers, around 500 B.C.E.. Around 300 B.C.E., the Greek mathematician ...

Prime numbers, vital in mathematics and competitive exams, can be quickly identified using a systematic approach. This method ...

A prime number is a number that is divisible only by itself and one. These numbers play an important role in pure mathematics and its field of number theory . Emphasis on pure.

UCLA mathematicians appear to have won a $100,000 prize from the Electronic Frontier Foundation for discovering a 13-million-digit prime number that has long been sought by computer users.

The online computer game “Is this prime?” tests a player’s knowledge of prime numbers—and just surpassed 2,999,999 attempts. Give it a whirl.

If you do the math, the new largest-known prime is a whopping 24,862,048 digits long. We would write the number out for you, but it would fill up thousands of pages, give or take, and look like ...

The smallest such number is 561: For any integer b, b 561 – b is always a multiple of 561, even though 561 is not prime. Numbers like these were named after the mathematician Robert Carmichael ...

This past week, John Pace of Germantown, Tenn., made a massive discovery. He found the largest prime number known to humankind. It's more than 23 million digits long.

Several early mathematicians believed that a number of the form (2p – 1) is prime whenever p is prime. But in 1536, mathematician Hudalricus Regius noticed that 11 is prime but not (211 – 1 ...