The NCERT Class 6 Mathematics Chapter 5 Prime Time Book PDF gives students the official Ganita Prakash chapter for the 2026-27 session. The chapter covers factors, multiples, prime numbers, composite numbers, prime factorisation, and divisibility tests through classroom activities.
- PDF length: 33 official NCERT pages from the 2026-27 textbook.
- Main focus: prime numbers, factor trees, co-prime numbers, and divisibility rules.
- Best use: read each activity first, then solve the Figure it Out questions.
Student Feedback: In a Collegedunia study poll of 11,240 Class 6 students, most students said Prime Time became easier after they made factor pairs before starting factor trees. Students also found divisibility tests helpful for checking large numbers quickly.
Source: 2026-27 Class 6 Mathematics student poll across CBSE schools.
This page hosts the official NCERT Ganita Prakash Chapter 5 PDF, so students can read the same Prime Time chapter used in the 2026-27 classroom.
Prime Time Chapter PDF for Class 6 Students
The Prime Time chapter helps students understand why some numbers split into many factors while some numbers have only two factors. The PDF keeps the official NCERT activity order, so classroom page numbers and homework questions match this copy.
- Early pages revise factors and multiples with patterns.
- Middle pages explain prime and composite numbers.
- Later pages use factor trees and divisibility tests.
Prime Time Class 6 Prime Numbers Video Recap
Source: Magnet Brains on YouTube
Prime Numbers and Composite Numbers in Chapter 5
Prime Time begins with the idea that every counting number can be studied through its factors. A prime number has exactly two factors, while a composite number has more than two factors.
| Idea | Meaning | Example |
|---|---|---|
| Prime number | Has exactly two factors: 1 and itself. | 2, 3, 5, 7, 11 |
| Composite number | Has more than two factors. | 4, 6, 8, 9, 10 |
| Factor pair | Two numbers that multiply to give a number. | 3 and 4 for 12 |
| Multiple | A number reached by repeated multiplication. | 24 is a multiple of 6 |
Factor Trees and Prime Factorisation in Prime Time
Factor trees show how a composite number breaks into prime factors. Students can choose any factor pair at the start, but the final prime factors stay the same when the work is correct.
- Start with the number and write one factor pair below it.
- Keep splitting every composite factor into smaller factors.
- Stop at prime numbers because they cannot split further.
- Multiply the primes to check that the original number returns.
Divisibility Tests Used in the Prime Time PDF
The chapter also uses divisibility tests to save time. Students do not need to divide every number fully when a quick rule can show whether the division is exact.
| Divisibility Test | Rule | Quick Check |
|---|---|---|
| 2 | The last digit is even. | 48 is divisible by 2. |
| 5 | The last digit is 0 or 5. | 135 is divisible by 5. |
| 10 | The last digit is 0. | 420 is divisible by 10. |
| 3 | The sum of digits is divisible by 3. | 123 works because 1 + 2 + 3 = 6. |
How to Use the Class 6 Mathematics Chapter 5 PDF
Students should read Prime Time with rough-work space beside the PDF. The chapter is activity-heavy, so writing factor pairs, circling prime numbers, and checking each answer makes the ideas clearer.
- List all factors before deciding whether a number is prime.
- Use a factor tree when the number has many factors.
- Check divisibility before starting long division.
- Solve the linked NCERT Solutions only after trying the PDF tasks once.
Prime Time Class 6 Chapter Links
Use these linked resources with the official PDF. They help students move from reading the chapter to solving and revising it.
| Resource | Use It For |
|---|---|
| Prime Time Class 6 NCERT Solutions | Step-by-step answers after reading the chapter. |
| Prime Time Class 6 Handwritten Notes | Quick revision of factors, primes, and divisibility rules. |
NCERT Class 6 Mathematics Book Chapter PDFs
The Ganita Prakash textbook has 10 chapters. Students can move from the Prime Time PDF to other chapter PDFs as each page goes live.
| Chapter | NCERT Book PDF |
|---|---|
| Chapter 1 | Patterns in Mathematics Class 6 NCERT Book PDF |
| Chapter 2 | Lines and Angles Class 6 NCERT Book PDF |
| Chapter 3 | Number Play Class 6 NCERT Book PDF |
| Chapter 4 | Data Handling and Presentation Class 6 NCERT Book PDF |
| Chapter 5 | Prime Time Class 6 NCERT Book PDF |
Prime Time Class 6 NCERT Book PDF FAQs
Ques. Is the Class 6 Mathematics Chapter 5 Prime Time PDF official?
Ans. Yes. This page hosts the official NCERT Ganita Prakash Chapter 5 PDF for the 2026-27 session.
Ques. How many pages are in the Prime Time Class 6 PDF?
Ans. The chapter PDF has 33 pages. It covers factors, multiples, primes, composite numbers, factor trees, and divisibility tests.
Ques. What is the main idea of Prime Time in Class 6 Mathematics?
Ans. The main idea is to study numbers through their factors, then use prime factorisation and divisibility rules to understand number patterns.
Ques. Does Chapter 5 teach prime factorisation?
Ans. Yes. The chapter explains prime factorisation with factor trees and asks students to break composite numbers into prime factors.
Ques. Where can I get answers for the Prime Time questions?
Ans. Use the linked NCERT Solutions page after trying the PDF questions once. It gives step-by-step answers for the chapter tasks.
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