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Number Theory · modular arithmetic

Euler's Totient Product Formula Formula

Computes Euler’s totient from the distinct prime divisors of n.

φ(n) = n∏(1 − 1/p)

Variables

n
positive integer
p
distinct prime divisors

Reference details

Subject
Number Theory
Topic
modular arithmetic
Plain text
phi(n)=n product(1-1/p)

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