Maths Playing With Numbers part 7 (Prime & composite numbers) CBSE Class 6 Mathematics VI | Summary and Q&A

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August 17, 2016
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Maths Playing With Numbers part 7 (Prime & composite numbers) CBSE Class 6 Mathematics VI

TL;DR

This video explains the concept of prime and composite numbers and how to determine if a given number is prime or composite.

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Key Insights

  • #️⃣ Prime numbers are numbers that have only two factors: 1 and the number itself.
  • #️⃣ Composite numbers have more than two factors, including 1 and the number itself.
  • #️⃣ Prime numbers cannot be divided evenly by any other number, while composite numbers can.
  • #️⃣ The number 1 is neither prime nor composite as it does not meet the criteria for either category.
  • 🧑‍🏭 By finding the factors of a number, you can determine if it is prime or composite.
  • #️⃣ Prime numbers play an important role in mathematics and have various applications in cryptography and number theory.
  • 🧑‍🏭 Composite numbers can be broken down into prime factors using prime factorization.

Transcript

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Questions & Answers

Q: What are prime numbers?

Prime numbers are numbers that have only two factors: 1 and the number itself. These numbers cannot be divided evenly by any other number.

Q: How can you determine if a number is prime or composite?

To determine if a number is prime or composite, you need to find its factors. If it has only two factors, 1 and the number itself, it is prime. If it has more than two factors, it is composite.

Q: What is the difference between prime and composite numbers?

The main difference is the number of factors. Prime numbers have only two factors, while composite numbers have more than two factors.

Q: Is 1 a prime or composite number?

No, 1 is neither a prime nor a composite number. It only has one factor, which is 1, and does not fit the criteria for prime or composite numbers.

Summary & Key Takeaways

  • The video introduces the concept of prime numbers, which are numbers that have only two factors: 1 and the number itself.

  • Composite numbers, on the other hand, have more than two factors, including 1 and the number itself.

  • The video provides examples of prime and composite numbers and explains how to determine if a number is prime or composite by finding its factors.

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