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What are the mathematical problems of scale?
There are countless math problems that are larger than the number of questions. If the conditions of natural numbers are attached, they are as follows:

0< 1, 1 1, 1>0

It can be divided into prime number, composite number, 1 and 0.

1, prime number: only 1 and its own natural number are called prime numbers. Also known as prime numbers.

2. Composite number: a natural number with other factors besides 1, which is itself called a composite number.

3. 1: There are only 1 factors. It is neither a prime number nor a composite number.

4, of course, 0 can't calculate the factor, just like 1, which is neither a prime number nor a composite number.