Carmichael number

Carmichael numbers

A Carmichael number is a composite numbers that satisfies Fermat's Little Theorem, or In this case, is the Carmichael number.

The first are:

\begin{align} 561 &= 3 \cdot 11 \cdot 17 \\ 1105 &= 5 \cdot 13 \cdot 17 \\ 1729 &= 7 \cdot 13 \cdot 19 \\ 2465 &= 5 \cdot 17 \cdot 29 \\ 2821 &= 7 \cdot 13 \cdot 31 \\ 6601 &= 7 \cdot 23 \cdot 41 \\ 8991 &= 7 \cdot 19 \cdot 67. \end{align}

See Also

• Fermat's Little Theorem
• Carmichael function

~ User:Enderramsby

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