Class 5 Exam > Class 5 Questions > Which of the following numbers is a prime num...
Start Learning for Free
Which of the following numbers is a prime number?
- a)12
- b)7
- c)18
- d)15
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Co...
A prime number is defined as a number greater than 1 that has no positive divisors other than 1 and itself. The number 7 only has two factors: 1 and 7, making it a prime number.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Co...
Understanding Prime Numbers
A prime number is defined as a natural number greater than 1 that has no positive divisors other than 1 and itself. This means that a prime number can only be divided evenly (without leaving a remainder) by 1 and the number itself.
Analyzing the Options
Let's evaluate the options provided:
Conclusion
Among the options given, only 7 meets the criteria of a prime number as it can only be divided evenly by 1 and itself. Therefore, the correct answer is option B. Understanding prime numbers is essential in mathematics, as they play a significant role in number theory and various applications.
A prime number is defined as a natural number greater than 1 that has no positive divisors other than 1 and itself. This means that a prime number can only be divided evenly (without leaving a remainder) by 1 and the number itself.
Analyzing the Options
Let's evaluate the options provided:
- 12: This number can be divided by 1, 2, 3, 4, 6, and 12. Since it has more divisors than just 1 and itself, it is not a prime number.
- 7: The only divisors of 7 are 1 and 7. Since it has no other divisors, 7 is a prime number.
- 18: This number can be divided by 1, 2, 3, 6, 9, and 18. It has multiple divisors, so it is not a prime number.
- 15: The divisors of 15 include 1, 3, 5, and 15. Because it has more than two divisors, it is not a prime number.
Conclusion
Among the options given, only 7 meets the criteria of a prime number as it can only be divided evenly by 1 and itself. Therefore, the correct answer is option B. Understanding prime numbers is essential in mathematics, as they play a significant role in number theory and various applications.
|
Explore Courses for Class 5 exam
|
|
Top Courses for Class 5View all
Question Description
Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? for Class 5 2025 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 5 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer?.
Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? for Class 5 2025 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 5 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer?.
Solutions for Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 5.
Download more important topics, notes, lectures and mock test series for Class 5 Exam by signing up for free.
Here you can find the meaning of Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following numbers is a prime number?a) 12b) 7c) 18d) 15Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 5 tests.
|
|
Explore Courses for Class 5 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily