Based on the image provided, this is a sorting activity to classify numbers as Prime, Composite, or Neither. Here’s how the numbers should be categorized:

1. Prime numbers:

   • These have only two distinct positive divisors: 1 and the number itself.
   • Example: $17$ (already correctly placed in the Prime section) and $19$ should also be moved here.

2. Composite numbers:

   • These have more than two divisors.
   • Examples: $16$ and $18$ are correctly placed in the Composite section.

3. Neither category:

   • The only numbers in this category are $0$ and $1$, as they are neither prime nor composite.

For this activity, the number $19$ should be moved to the Prime category.

Do you have any questions or need further clarification?

5 Related Questions:

1. What is the difference between prime and composite numbers?
2. Why are $0$ and $1$ considered neither prime nor composite?
3. Can a composite number ever become a prime number?
4. Are there any patterns in how prime numbers are distributed?
5. How can you quickly check if a number is prime or composite?

Tip:

To test if a number is prime, check divisibility only up to its square root. For example, for $19$, check divisors up to $\sqrt{19}$, which is approximately $4.36$. If no divisors other than $1$ and $19$ are found, it is prime.