Calculate φ(15)
This is known as the totient
Calculate factors for 15
Factors for 15 are 1,3,5,15
Factors < 15 with 1 as common factor
Build totient list
1,2,4,7,8,11,13,14
φ(15) = 8
What is the Answer?
φ(15) = 8
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 factorFor more math formulas, check out our Formula Dossier
What 5 concepts are covered in the Eulers Totient (φ) Calculator?
eulers totient (φ)factora 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.phiA letter of the greek alphabet used for math notation.Φ φprime numbera natural number greater than 1 that is not a product of two smaller natural numbers.totientThe number of positive integers not greater than a specified integer that are relatively prime to it
Example calculations for the Eulers Totient (φ) Calculator
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