CarmichaelLambda
 Usage
• CarmichaelLambda[n] 给出了Carmichael函数  (n)，Carmichael函数定义为使得对所有的与  素的  都有  的最小整数。
Notes
• 如果没有任何整数  满足要求的条件， CarmichaelLambda 不会求值而返回。 • 参见 Mathematica 全书: 节 3.2.4.
 Further Examples
The Carmichael function of  is  . The following examples show what this means.
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This selects the integers from  to  that are relatively prime to  .
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Taking any of these integers to the power CarmichaelLambda[9] is  modulo  .
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CarmichaelLambda[9] is the first integer that does this.
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