All numbers that only have one and itself as factors are prime. Therefore, to tell if a number is prime simply find it's factors. If it has more than two factors than it is not a Prime number.
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Any number that is not a prime number.. . .Prime numbers: 1,3,5 and 7
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.
The factors of 30 that are not prime numbers are 6, 10 and 30.
Prime number next to any prime number is called consecutive prime number. Eg:- 2,3,5,7 are prime numbers
Prime factorization is writing a composite number as a product of prime numbers.