Generate Euler Totient Number Sequence

Euler’s Totient Number Sequence Generator


Welcome to the "Generate Euler Totient Number Sequence"! This tool enables you to generate the Euler's totient number sequence up to a specified limit. Euler's totient function, also known as Euler's phi function, calculates the number of positive integers less than or equal to a given number that are coprime to it.

Steps to use the tool:

  1. Enter the desired limit in the input field provided.
  2. Click on the "Generate Totient Sequence" button.
  3. The tool will compute the Euler's totient numbers up to the specified limit and display them in the output textarea.

Functionality of the tool:

The tool utilizes a JavaScript function called generateTotientSequence() to calculate Euler's totient numbers. It employs Euler's totient function, eulerTotient(n), which iterates through each number up to the limit and calculates its totient value based on prime factorization.

Benefits of using this tool:

  • Efficiency: Quickly generate Euler's totient number sequence without manual computation, saving time and effort.
  • Accuracy: The tool accurately computes Euler's totient numbers based on the specified limit.
  • Flexibility: Users can specify the desired limit, allowing for the generation of totient numbers within a specific range.


  1. What is Euler's totient function?
    • Euler's totient function, denoted by 𝜙(𝑛)ϕ(n), calculates the count of positive integers less than or equal to 𝑛n that are coprime to 𝑛n.
  2. How does Euler's totient function work?
    • Euler's totient function evaluates the number of positive integers less than or equal to 𝑛n that do not share any common factors with 𝑛n, except 1.
  3. What are coprime numbers?
    • Coprime numbers, also known as relatively prime numbers, are integers that have no common prime factors. In other words, their greatest common divisor (GCD) is 1.
  4. What are some applications of Euler's totient function?
    • Euler's totient function has applications in number theory, cryptography, and computer science. It is used in RSA encryption, which relies on the difficulty of factoring large semiprime numbers.
  5. Can Euler's totient function handle large numbers efficiently?
    • Yes, Euler's totient function can efficiently compute the totient value for large numbers using techniques such as prime factorization and mathematical properties of coprime numbers. However, for extremely large numbers, specialized algorithms may be required for optimal performance.