Question
Download Solution PDFWhich of the following statements is NOT correct?
1. There are only four single-digit prime numbers.
2. There are infinitely many prime numbers.
3. A prime number has only two factors.
4. All prime numbers are odd.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
(I) There are only four single-digit prime numbers.
2, 3, 5, 7 are the only single-digit prime numbers. Thus, Correct statement.
(2) There are infinitely many prime numbers.
There are infinitely many natural numbers. Thus, correct statement.
(3) A prime number has only two factors.
A prime number has only two factors, 1 and itself. Thus, correct statement.
(4) All prime numbers are odd numbers.
2 is a prime number, which is an even number. Thus, false.
Hence, the required option is 4.
Last updated on Jul 18, 2025
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