• Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Arinjay Academy

Study Maths, Hindi, Accounts, Economics, for K-12 and International Taxation for CA Final Students. Visit Website or download app for updates.

  • Home
  • NCERT Solutions
    • Class 6
    • Class 7
    • Class 8
    • Class 9
    • Class 10
  • CBSE Notes
    • Hindi Grammar
    • Maths
    • Accounts
    • Economics
  • Worksheets
  • CA
  • Blog
  • Contact Us
You are here: Home / Archives for prime numbers meaning

prime numbers meaning

Prime Numbers

Arinjay Academy / August 17, 2018

What is a Prime Number | Examples of Prime numbers

What is a Prime Number ? 

Prime number is a natural number greater than 1 that has no positive divisors other than 1 and the number itself

In other words, we can say prime numbers don’t have any factor other than 1 and itself.

For Example – 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 are Prime Numbers.

Examples of Prime Numbers

Question 1

Which of the following is a prime number?
3, 6, 9

Explanation

Factors of 6 are 2 x 3 x 1
Factors of 3 are 3 x 1
Factors of 9 are 3 x 3 x 1
Here, Factors of 3 are 3 and 1
3 is not divisible by any other number, other than 1 and itself
Therefore, 3 is a prime number.

Question 2

Which of the following is a prime number?

10, 15, 5

Explanation

Factors of 10 are 2 x 5 x 1
Factors of 5 are 5 x 1
Factors of 15 are 3 x 5 x 1
Here, Factors of 5 are 5 and 1
5 is not divisible by any other number, other than 1 and itself
Therefore, 5 is prime number.

Question 3

Which of the following is a prime number?

26, 13, 30

Explanation

Factors of 26 are 2 x 13 x 1
Factors of 13 are 13 x 1
Factors of 30 are 3 x 5 x 2 x 1
Here, Factors of 13 are 13 and 1
13 is not divisible by any other number, other than 1 and itself
Therefore, 13 is a prime number.

Question 4

Which of the following is a prime number?

34, 17, 51

Explanation

Factors of 34 are 2 x 17 x 1
Factors of 17 are 17 x 1
Factors of 51 are 3 x 17 x 1
Here, Factors of 17 are 17 and 1
17 is not divisible by any other number, other than 1 and itself
Therefore, 17 is prime number.

Question 5

Which of the following is a prime number?

19, 38, 57

Explanation

Factors of 38 are 2 x 19 x 1
Factors of 19 are 19 x 1
Factors of 57 are 3 x 19 x 1
Here, Factors of 19 are 19 and 1
19 is not divisible by any other number, other than 1 and itself
Therefore, 19 is prime number.

Composite Number – Definition & Examples

Thousands of Maths Practice Questions @ Rs 49 only↓

Maths Class 5

Primary Sidebar

Categories

  • Accounts 11
  • Accounts 12
  • Biology Class 10
  • Budget 2019
  • CA Final Elective Paper 6C – International Tax MCQs
  • CA Final Indirect Tax
  • CA Final International Tax
  • CA Final Result
  • CA Final Syllabus
  • CA Foundation Syllabus
  • CA INTER -INCOME TAX – NOTES
  • CA Intermediate MCQs
  • CA Intermediate/ IPC Syllabus
  • CBSE Syllabus | NCERT Syllabus
  • Chartered Accountancy
  • CTET – Central Teacher Eligibility Test
  • Economics Class 12
  • Economics MCQS
  • English Grammar
  • Geography
  • Hindi Vyakaran
  • Hindi Vyakaran Class 10
  • Hindi Vyakaran Class 6
  • Hindi Vyakaran Class 7
  • Hindi Vyakaran Class 8
  • Hindi Vyakaran Objective Questions
  • International Maths Olympiad (IMO)
  • International Tax – Interpretation of Treaty
  • Maths
  • Maths Class 1
  • Maths Class 10
  • Maths Class 2
  • Maths Class 3
  • Maths Class 4
  • Maths Class 5
  • Maths Class 6
  • Maths Class 7
  • Maths Class 8
  • Maths Class 9
  • NCERT Books
  • NCERT Solutions
  • NCERT Solutions for Class 10 Hindi
  • NCERT Solutions for Class 9 Hindi
  • Non resident Taxation – WHT Section 195
  • PAPERS AND MCQ
  • Physics Class 9
  • Science
  • Science Class 9
  • TDS
  • Uncategorized

Footer

Social links

Twiter Facebook link Youtube link

Address

Unit Number 319, Vipul Trade Centre, Sohna Road, Gurgaon, Sector 49, Gurugram, Haryana 122018, India

Working Days

Monday – Friday

Office Hours

9:00am – 6:00pm

Phone Number

+91-9667222008
+91-1244985228
+91-9810319335

Email

aacademyapp@gmail.com

Quick links

  • Home
  • School
    • NCERT Solutions
    • Practice Questions
    • Worksheets
    • Notes
      • Maths
      • Hindi Vyakaran
      • Accounts
      • Economics class 12
  • Chartered Accountant ( CA )
  • Blog
  • Contact Us
  • Home
  • Pricing Policy
  • Privacy Policy
  • Refund Policy
  • Sitemap
  • Terms of Service