All the other even numbers can be divided by 2, so no other even numbers are prime. 3 is the next prime number. Work out all the multiples of 3, (6, 9, 12, 15 etc) and forget about these.

The first five prime numbers: 2, 3, 5, 7 and 11. A prime number is an integer, or whole number, that has only two factors — 1 and itself. Put another way, a prime number can be divided evenly ...

Prime numbers are quite extraordinary. They're like "special snowflakes" - unique in the way that they don't have any other positive divisors other than the number 1 and the prime number itself.

The largest prime number ever found weighs in at 13 million digits long. There are only 46 of these rare, huge numbers -- so far -- and mathematicians are continuing the search by using the ...

Prime numbers are essential to modern life because they underpin all of encryption. What is written makes no sense, but there may be good ideas, buried in it, for future discussion.

If you do this with all numbers from 2 to 100, only prime numbers will remain. Sieving multiples of 2, 3, 5 and 7 leaves only the primes between 1 and 100. Courtesy of M.H. Weissman. With eight ...

Update, Jan. 4, 2018: On Wednesday, the Great Internet Mersenne Prime Search announced that a computer owned by Jonathan Pace in Germantown, Tennessee, discovered a new prime number. At 23,249,425 ...

A small portion of the 17 million digits in the number 2 multiplied by itself 57,885,161 times minus 1 -- the first Mersenne prime discovered in four years. (FoxNews.com) ...

The Great Internet Mersenne Prime Search, an organization devoted to doing exactly what its name suggests, announced that it had discovered a new prime number, the largest ever found: \(2 ...

Borel asked Dyson to name a prime number and, unlike Grothendieck, Dyson provided a number that is only divisible by 1 and itself: 2 31 – 1. But that reply did not satisfy Borel.