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Prime number - Wikipedia


A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a ...

Prime Numbers - Facts, Examples, & Table Of All Up To 1,000


Prime Numbers. A prime number can be divided, without a remainder, only by itself and by 1. For example, 17 can be divided only by 17 and by 1. Some facts:.

Prime Numbers Chart and Calculator - Math is Fun


A Prime Number can be divided evenly only by 1 or itself. And it must be a whole number greater than 1. Here is a list of all the prime numbers up to 1,000: ...

The first 1000 primes


Prime numbers


Euclid also showed that if the number 2<sup>n</sup> - 1 is prime then the number 2<sup>n-1</sup>(2<sup>n</sup> - 1 ) is a perfect number. The mathematician Euler (much later in 1747) was able to ...

Prime Number -- from Wolfram MathWorld


For example, the only divisors of 13 are 1 and 13, making 13 a prime number, while the number 24 has divisors 1, 2, 3, 4, 6, 8, 12, and 24 (corresponding to the  ...

Prime Numbers - BrainPOP


In this educational animated movie about Math learn about composite, factors, eucid, numbers, and Prime.

Number Ninja - Prime Numbers | ABCya!


Number Ninja: Prime Numbers is a fast-action way to practice factors. Act quickly and use your finger or mouse to slice numbers and reduce them to their prime ...

What is prime number? - Definition from WhatIs.com


A prime number is a whole number greater than 1, whose only two whole- number factors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, ...

A huge discovery about prime numbers—and what it means for - Slate


May 22, 2013 ... Last week, Yitang “Tom” Zhang, a popular math professor at the University of New Hampshire, stunned the world of pure mathematics when he ...

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Prime numbers | Prime numbers (video) | Khan Academy


Prime numbers are numbers that are only divisible by themselves and 1. Learn more about their properties, and see some examples.

Math Forum: Ask Dr. Math FAQ: Prime Numbers


What is a prime number? How can you find prime numbers? What's the 'Sieve of Eratosthenes'? How can you decide if a number is prime? What's the largest ...

The Prime Pages (prime number research, records and resources)


Access to hundreds of pages of award-winning information on prime numbers-- with links to thousands of pages elsewhere. We host the searchable database of  ...