Even Numbers

Learn what even numbers are with simple explanations, examples, properties, and beginner-friendly breakdowns.

1. Introduction to Even Numbers

Even numbers are numbers that can be divided into two equal parts without leaving any remainder. They appear naturally in everyday life whenever things are grouped in pairs.

If a number ends with 0, 2, 4, 6, or 8, it is an even number.

2. Definition of Even Numbers

An even number is any integer that is divisible by 2.

In simple terms: If a number can be written as \(2 \times n\), where \(n\) is an integer, then it is even.

Examples:

  • \(2 = 2 \times 1\)
  • \(8 = 2 \times 4\)
  • \(0 = 2 \times 0\)

3. Identifying Even Numbers

You can easily recognize an even number by looking at its last digit.

3.1. Last Digit Rule

If a number ends in 0, 2, 4, 6, or 8, it is even.

Examples:

  • 14 → ends in 4 → even
  • 102 → ends in 2 → even
  • 1008 → ends in 8 → even

3.2. Using Division

If dividing a number by 2 gives a whole number, it is even.

Examples:

  • \(16 \div 2 = 8\) → whole number → even
  • \(7 \div 2 = 3.5\) → not whole → not even

4. Properties of Even Numbers

Even numbers follow predictable patterns in math.

4.1. Even ± Even

Even number plus or minus another even number is always even.

  • \(8 + 4 = 12\)
  • \(10 - 6 = 4\)

4.2. Even × Even

The product of two even numbers is always even.

  • \(4 \times 6 = 24\)
  • \(2 \times 10 = 20\)

4.3. Even × Odd

An even number multiplied by an odd number is always even.

  • \(2 \times 3 = 6\)
  • \(8 \times 5 = 40\)

4.4. Even Number Examples

Some even numbers are: -10, -2, 0, 2, 4, 6, 8, 20, 100, 256.

5. Even Numbers in Real Life

Even numbers appear in many everyday situations.

5.1. Pairs

Even numbers can form perfect pairs. For example, 6 socks can be paired into 3 pairs.

5.2. Sharing Equally

If a group of items can be divided equally between two people, the total count is even.

5.3. Time and Calendar

Many even numbers appear in timekeeping: 2 hours, 4 weeks, 6 minutes, etc.

6. Difference Between Even and Odd Numbers

Even numbers always end in 0, 2, 4, 6, 8, while odd numbers end in 1, 3, 5, 7, 9.

6.1. Comparison Table

Even NumbersOdd Numbers
Divisible by 2Not divisible by 2
End with 0, 2, 4, 6, 8End with 1, 3, 5, 7, 9
Examples: 2, 8, 14Examples: 3, 7, 21

7. Practice Questions

  1. Is 28 an even number?
  2. Is 0 an even number?
  3. Write the next five even numbers after 12.
  4. Is -6 an even number?
  5. Which of these are even: 17, 42, 59, 88?

8. Summary

Even numbers are integers that can be divided by 2 without a remainder. They end in 0, 2, 4, 6, or 8 and follow predictable rules in arithmetic. Even numbers help in pairing, grouping, and equal sharing in everyday life.