A prime number is any positive integer greater than zero that has only two proper divisorsA proper divisor is a number n that when divided into another number N leaves no remainder. , 1 and the number itself. Thus the lowest prime number is 2, which is also the only even prime; numbers greater than 1 that are not prime are known as composite numbers, because they can be expressed as the product of two other numbers smaller than themselves;[1] for instance, 8 can be expressed as
. (The prime factor of 8 is
)
Prime numbers are fundamental to mathematics, as all whole numbers can be constructed from them; anything that can be shown to be true about prime numbers is therefore true for all numbers.[2]
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{4928910:VPJQR5YC};{4928910:TBBE3KLS}
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