What Are Consecutive Numbers? Definition, Integers, Examples

What Are Consecutive Numbers?

Consecutive numbers form an ordered sequence of integers where each number succeeds its predecessor by a consistent difference of 1. Whether ascending or descending, this unbroken chain of numbers encapsulates a fundamental concept in mathematics.

Integers and Examples:

  1. Ascending Consecutive Numbers:
    • In the realm of ascending sequences, integers progress by 1 in each step. Examples include:
      • 7, 8, 9, 10, 11,…
      • 22, 23, 24, 25, 26, …
  2. Descending Consecutive Numbers:
    • Contrarily, descending sequences witness integers decreasing by 1 with each step. Examples unfold as:
      • 15, 14, 13, 12, 11, …
      • 30, 29, 28, 27, 26,…

Key Characteristics:

  1. Consistent Increment:
    • The defining trait of consecutive numbers is the steady increment or decrement of 1 between successive integers.
  2. Endless Continuation:
    • The sequence of consecutive numbers stretches infinitely in both directions, extending endlessly towards positive and negative infinity.
  3. Mathematical Versatility:
    • Consecutive numbers find versatile applications in various mathematical domains, contributing to the formulation of patterns, equation solving, and simplification of mathematical expressions.

Sum of Consecutive Numbers:

  1. Gauss’s Formula in Action:
    • Gauss’s formula, n(n + 1)/2remains a powerful tool for finding the sum of consecutive numbers. Examples include determining the sum of integers from 1 to 10 or 1 to 100 using this efficient formula.


Consecutive numbers, with their rhythmic succession, serve as pillars in the mathematical landscape. Whether ascending towards higher values or descending towards lower ones, they embody simplicity and efficiency, enriching the tapestry of mathematical exploration and problem-solving.