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Numbers that are not prime are called composite numbers. A composite number is a positive integer greater than one that can be formed by multiplying two smaller positive integers. In other words, composite numbers have more than two factors, unlike prime numbers which only have two factors (1 and the number itself).
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TaigaThere are many different sets of numbers. Assuming you mean only the positive integers and purely the 2 states prime or non-prime, the ones that are not primes are termed composites. One caveat, the number 1 is somewhat unique, being considered neither prime nor composite.
[ However, relaxing this, other numbers like the set of irrationals and reals are mostly not prime as well. This would be numbers like the famous Pi or a number like 2.17]
Composite is a number that is not prime.
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What is a chart of prime numbers called?
The Sieve of Erastosthenes shows prime numbers.
What are numbers that only have two factors called?
They are called prime numbers.
Two prime numbers which differ by 2 are called?
Two prime numbers which differ by 2 are called "twin primes".
What are two consecutive prime numbers called?
2 and 3 are the only consecutive numbers that are prime.
What does 'product of prime numbers' mean?
The multiplication answer of the prime numbers, so if you multiply them, the answer is called the product
