What are prime numbers? Prime numbers?

What are prime numbers? Prime numbers?

Prime number is also called prime number. It refers to the number in a natural number greater than 1 which can not be divided by other natural numbers except 1 and the integer itself. In other words, natural numbers with only two positive factors (1 and itself) are prime numbers. Numbers larger than 1 but not prime numbers are called composite numbers. 1 and 0 are neither prime nor composite numbers

What is prime? What is prime?

Prime number, also known as prime number, has infinite numbers. A natural number greater than 1 is called prime number if it can not be divided by other natural numbers except 1 and itself (except 0); otherwise, it is called composite number. According to the basic theorem of arithmetic, every integer larger than 1 is either a prime number itself, Or it can be written as the product of a series of prime numbers; and if the order of these prime numbers in the product is not considered, the written form is unique

The multiple of a prime number must be a composite number______ (judge right or wrong)

Suppose that this prime number is 5, the smallest multiple of 5 is 5, 5 only contains 1 and its two divisors, 5 is not a composite number, so it is wrong to say that the multiple of 5 must be a composite number; so the answer is: ×