---
type: "Chapter"
knowledge_type: "chapter"
entity_type: "chapter"
id: "69bd215b5fbc9e395ac4bad9"
title: "Prime Time"
board: "CBSE"
curriculum: "CBSE"
class: "Class 6"
subject: "Mathematics"
book: "Ganita Prakash"
chapter: "Prime Time"
chapter_slug: "prime-time"
canonical_url: "https://www.edzy.ai/cbse-class-6-mathematics-ganita-prakash-prime-time"
markdown_url: "https://www.edzy.ai/okf/chapter/cbse-class-6-mathematics-ganita-prakash-prime-time.md"
source_type: "examSubjectBookChapter"
source_id: "69bd215b5fbc9e395ac4bad9"
source_pdf: "https://edzy-ai.s3.ap-south-1.amazonaws.com/edzy-express-ts/c3847198-22b8-4811-a32a-547158f84e55.pdf"
source: "Edzy"
version: 1
last_updated: "2026-06-20"
---

# Prime Time

The chapter discusses a children's game involving numbers where they need to replace specific multiples with the terms 'idli' and 'vada'. It focuses on identifying common multiples and understanding their significance through playful learning.

---

## Knowledge Snapshot

| Field | Details |
| :--- | :--- |
| Class | Class 6 |
| Subject | Mathematics |
| Book | Ganita Prakash |
| Chapter | Prime Time |
| Pages | 107-128 |

---

## Chapter Summary

### Short Summary
The chapter explains a game that helps children learn about multiples, specifically multiples of 3 and 5, through an engaging activity where players say 'idli' for multiples of 3 and 'vada' for multiples of 5.

### Detailed Summary
In the chapter, children play a game where they call out numbers in a circle. They say 'idli' for multiples of 3 (such as 3, 6, 9, 12, 18, ...) and 'vada' for multiples of 5 (like 5, 10, 15, 20, ...). When a number is a multiple of both 3 and 5, they say 'idli-vada', with 15 being the first number to invoke this term. Players are eliminated for mistakes, with the game continuing until one winner remains. This activity introduces the concepts of common multiples through a fun and interactive format.

---

## Topic-Wise Explanation

### Common Multiples and Common Factors
The game demonstrates the concept of common multiples, specifically highlighting numbers that are multiples of both 3 and 5, such as 15, 30, etc.

### Prime Numbers
This topic is not covered in the chapter.

### Co-prime Numbers for Safekeeping Treasures
This topic is not covered in the chapter.

### Prime Factorisation
This topic is not covered in the chapter.

### Divisibility Tests
This topic is not covered in the chapter.

### Fun with Numbers
The chapter's game format illustrates the fun aspect of learning about numbers and their properties through engaging play.

---

## Core Ideas

| Idea | Explanation |
| :--- | :--- |
| Game of Idli-Vada | An interactive learning approach to understand multiples through a game setting. |

---

## Key Concepts

| Concept | Meaning |
| :--- | :--- |
| Multiples | Numbers that can be evenly divided by another number. |
| Common Multiples | Numbers that are multiples of two or more numbers. |

---

## Important Points for Revision

* Players replace multiples of 3 with 'idli'.
* Players replace multiples of 5 with 'vada'.
* 'Idli-vada' is used for multiples of both 3 and 5, starting with 15.
* The game eliminates players for mistakes until one winner remains.
* The game emphasizes learning through a playful environment.

---

## Practice Questions

### Short Answer Questions
1. What do players say when their turn is a multiple of 3?
2. What will players say for multiples of 5?
3. What is the significance of the number 15 in the game?
4. How are players eliminated from the game?
5. What is the goal of the game?

### Long Answer Questions
1. Explain the rules of the Idli-Vada game and the numbers associated with it.
2. Describe how the game helps in understanding common multiples.
3. Discuss the learning outcomes of playing the Idli-Vada game in terms of number concepts.

---

## Source Attribution

| Field | Value |
| :--- | :--- |
| Source | Edzy |
| Reference Type | examSubjectBookChapter |
| Reference ID | 69bd215b5fbc9e395ac4bad9 |
| Canonical URL | https://www.edzy.ai/cbse-class-6-mathematics-ganita-prakash-prime-time |
| Markdown URL | https://www.edzy.ai/okf/chapter/cbse-class-6-mathematics-ganita-prakash-prime-time.md |