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They are the composite numbers, products of primes and their multiples.

All even numbers are composite, except the number two (2) which is prime.

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Q: What are all the numbers that are not prime numbers called?
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Related questions

What is it called when all the prime numbers that make a given number called?

i think prime numbers


Can all whole numbers be written as prime numbers times together?

Yes, this is called their prime factorization.


What are numbers that have 2 factors called?

Prime numbers like 2, 3, 5 and 7.


What is a number that can be factored as a prime number be called?

All composite numbers can be expressed as unique products of prime numbers. This is known as a prime factorization.


what are the numbers for not prime numbers?

Numbers that are not prime numbers are called composite numbers.


What are numbers that are not prime?

A number that is not a prime number is called a composite number because it can be made by multiplying prime numbers together. For example, 6 is a composite number that is the product of multiplying the prime numbers 2 and 3 together.


What are the all prime numbers?

2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97 these are all the prime numbers


What are not prime or composite numbers called?

There is no specific name. Such numbers include all irrational numbers, all non-integral rational numbers, 0 and 1.


Are prime factors and prime factorization the same?

No. Prime factors are the numbers that make up other numbers, but they have to be prime. Prime factorisation is the process of finding the prime numbers that create a number. This is when you multiply the prime numbers together and the product is the original number. For example: 20 5x4 5x2x2 This process is called prime factorisation. In this case, the prime numbers are 2, 2, and 5.


Are prime numbers rational numbers?

All prime numbers are rational.


What is a chart of prime numbers called?

The Sieve of Erastosthenes shows prime numbers.


What is 1 called if not a prime number?

It is called a "unit". Note: by definition, 1 can not be prime because all prime numbers are divisible by exactly 1 AND itself, with the AND inferring that there is a second factor. therefore all prime numbers have exactly 2 factors, 1 AND itself. 1 is the multiplicative identity