Enter n for totient


Calculate φ(5)

This is known as the totient

Calculate factors for 5

Factors for 5 are 1,5

Factors < 5 with 1 as common factor

Build totient list


φ(5) = 4

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What is the Answer?
φ(5) = 4
How does the Eulers Totient (φ) Calculator work?
Free Eulers Totient (φ) Calculator - Given a positive integer (n), this calculates Euler‘s totient, also known as φ
This calculator has 1 input.

What 1 formula is used for the Eulers Totient (φ) Calculator?

φ(n) = All numbers less than n which only have 1 as a common factor

For more math formulas, check out our Formula Dossier

What 5 concepts are covered in the Eulers Totient (φ) Calculator?

eulers totient (φ)
a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n.
A letter of the greek alphabet used for math notation.
Φ  φ
prime number
a natural number greater than 1 that is not a product of two smaller natural numbers.
The number of positive integers not greater than a specified integer that are relatively prime to it
Example calculations for the Eulers Totient (φ) Calculator

Eulers Totient (φ) Calculator Video


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