Definitions
from Wiktionary, Creative Commons Attribution/ShareAlike License
 n. The number of positive integers not more than a specified integer that are relatively prime to it.
from The Century Dictionary and Cyclopedia
 n. The number of totitives of a number; when used without qualification, the number of numbers at least as small as a given number and prime to it—that is, having integral no common factor with it except 1.
Etymologies
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Examples

General article properties pagename = Jordan's totient function variant = BE

Required for checklist abc = Jordan's totient function cat_check = yes status = 2 underlinked = yes cleanup = yes

Take p1 and q1 and find the totient function of N, the product T = (p1) (q1).

In [[number theory]], the '' 'totient function' '' of a [[positive integer]] '' n '', is defined to be the number of positive integers in the set

In [[number theory]], the '' 'totient function' '' φ (

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