Euler’s totient function

Concept history

A revision trail for this concept page.

3 revisions

Revision 2228

8/24/2026, 9:17:20 AM · Sequoia

Shared settings updated from fr translation

linked exercises~~Sur l’indicatrice d’Euler~~Formule pour l’indicatrice d’Euler, Preuve de

\displaystyle n =\sum_{d\mid n}\varphi(d).

8/24/2026, 9:09:01 AM · Sequoia

Shared settings updated from fr translation

linked exercises~~None~~Sur l’indicatrice d’Euler

7/6/2026, 9:39:44 AM · Ancient Tree

Concept created

It is...