Question
Easy
Which of the following statements is not correct?
1
All prime numbers are odd numbers.
2
Prime numbers are infinitely many.
3
Prime numbers have only two factors.
4
There are only four single digit prime numbers.
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P1
Chapter: Number System
Topic: Prime and Composite Numbers
Correct Answer
Option A
Explanation
Option 1 is the correct answer because it states that "All prime numbers are odd numbers," which is not true. The definition of a prime number is a number greater than 1 that has no divisors other than 1 and itself. While most prime numbers are indeed odd, there is one notable exception: the number 2. The number 2 is a prime number because it can only be divided evenly…Read More
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