In a scenario where a set is defined by the constraints of being both a prime nu
Practice Questions
Q1
In a scenario where a set is defined by the constraints of being both a prime number and less than 20, which of the following is NOT included in the set?
2
3
4
19
Questions & Step-by-Step Solutions
In a scenario where a set is defined by the constraints of being both a prime number and less than 20, which of the following is NOT included in the set?
Step 1: Understand what a prime number is. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.
Step 2: Identify the prime numbers that are less than 20. These are: 2, 3, 5, 7, 11, 13, 17, 19.
Step 3: Look at the number '4'. Determine if it is a prime number.
Step 4: Check the divisors of '4'. The divisors are 1, 2, and 4. Since '4' has divisors other than 1 and itself, it is not a prime number.
Step 5: Conclude that since '4' is not a prime number, it does not belong to the set of prime numbers less than 20.
