Q:
# What Is the Opposite of a Prime Number?

**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.

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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Q:
## Is 87 a Prime Number?

A: The number 87 is not a prime number. The factors of 87 are 1, 3 and 29. A prime number must have only two factors, the numbers one and the number itself. Full Answer >Filed Under: -
Q:
## Is 49 a Prime Number?

A: The number 49 is divisible by seven, so it is not a prime number. A prime number is a number that is only divisible by the number 1 and itself. Full Answer >Filed Under: -
Q:
## Is 7 a Prime Number?

A: Seven is a prime number. A prime number is a positive number that only has two possible divisible numbers. A prime number can only be divided by one and it... Full Answer >Filed Under: -
Q:
## Is Two a Prime Number?

A: Two is a prime number. Two is the smallest prime number and the only even prime number, since all other even numbers divide by two. Full Answer >Filed Under: