Carmichael's lambda function
Important: The numtheory package has been deprecated. Use the superseding command NumberTheory[CarmichaelLambda] instead.
The size of the largest cyclic group generated by gimodn is given by lambda(n).
Carmichael's theorem states that aλ⁡n=1modn if gcd⁡a,n=1.
The command with(numtheory,lambda) allows the use of the abbreviated form of this command.
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