19 is a prime number.
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Keep practicing — related questions
- Which of the following is a prime number?
- If a number is prime, it must be odd?
- Which of the following is not a prime number?
- Since every even number is divisible by 2, there are no even prime numbers.
- Since every even number is divisible by 2, there are no even prime numbers.
- Which one of the following is not a prime number?
- Which of the following is not a prime number?
- Which of the following is a prime number?