Q:

What is the opposite of a prime number?

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Quick Answer

A number that is not prime is called a composite number. Composite numbers can be divided up into smaller whole numbers called factors. A prime number has no factors other than one and itself.

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Full Answer

Most integers, or counting numbers, are composite numbers. Primes are comparatively rare. All even numbers are divisible by two, so they are composite numbers. As a number grows in magnitude, the chance that it is divisible by some lesser number increases, so primes become fewer and fewer as magnitude increases. By convention, one is not considered prime. The number two is considered prime because even though it is an even number, it is only divisible by one and itself.

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Related Questions

  • Q:

    Is "0" a prime number?

    A:

    The number zero is not a prime number. By definition, a prime number dictates that the number must be a whole number greater in value than one and must be divisible by only itself and one.

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  • Q:

    Is five a prime number?

    A:

    Five is a prime number. A prime number is a number which only has two factors. Those two factors are one and the number itself.

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  • Q:

    Is 33 a prime number?

    A:

    The number 33 is not a prime number. Prime numbers only have factors of themselves and 1. The positive factors of 33 are 1, 3, 11 and 33.

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  • Q:

    Is 101 a prime number?

    A:

    Since it is only divisible by 1 and itself, 101 is a prime number. Primes are whole numbers greater than 1 with no other divisors but 1 and their whole value. All numbers not prime are composite.

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