Q:

What is a composite number?

A:

A composite number is a positive whole number that can be divided evenly by a number other than itself and one. For example, 12 is a composite number, as it can be divided evenly by three and four.

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Full Answer

All whole numbers greater than zero are either prime numbers or composite numbers. A prime number can only be divided evenly by itself and one, whereas a composite number can also be divided evenly by a third number. The first four composite numbers counting from zero are four, six, eight and nine. Each composite number is also the product of two or more prime numbers.

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Related Questions

  • Q:

    What is the opposite of a prime number?

    A:

    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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  • Q:

    What are prime and composite numbers?

    A:

    A prime number is a whole number greater than one that is only divisible by one or itself without leaving a remainder. A composite number is a whole number greater than one that is evenly divisible by more than one and itself.

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  • Q:

    What is a number multiplied by itself called?

    A:

    A number that is multiplied by itself is called a base when it is written in exponential notation. Exponential notation consists of the number to be multiplied and a numeral in superscript to the right of it to indicate the number of times it is to be multiplied by itself.

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  • Q:

    Is the number 1 prime?

    A:

    The number one is neither prime nor composite. Prime numbers are those defined as natural numbers greater than one not divisible by any other numbers but one and itself. Composite numbers have at least one additional positive divisor and include all whole numbers greater than one that are not prime.

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