Playing with numbers Class 6 notes - Chapter 3

A number is defined as an arithmetical value, expressed by a word, symbol, and figures. These numbers can be written in single digits, double digits, three-digits in the generalized form.

Types of Numbers

A number system is a system of writing for expressing numbers. According to the number system, the different types of a number includes:

  • Prime numbers
  • Even numbers
  • Odd numbers
  • Whole numbers
  • Natural numbers
  • Composite numbers

Lets us look into some solved example problems.

Write all the factors of 65

65 is a composite number.

65 = 1 × 65

5 x 13 = 65

Factors of 65: 1, 5, 13, 65.

Find the common factors of :850 and 680

The common factors of 850 and 680 are 2, 5 and 17.

Important Questions

  1. What is the fifth multiple of 12?
  2. What are prime numbers?
  3. Write all the factors of 24 and 27.
  4. Write the first five multiples of 4, 6, and 9.
  5. Which is the smallest composite number?

Learn more about the numbers from the topics given below:

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