CarmichaelLambda

CarmichaelLambda[n] gives the Carmichael function , defined as the smallest integer such that for all relatively prime to .

Integer mathematical function (see Section A.3.10).

CarmichaelLambda returns unevaluated if there is no integer satisfying the necessary conditions.

See Section 3.2.4.

See also: MultiplicativeOrder, EulerPhi, RealDigits.

New in Version 4.

Further Examples