Korselt's Criterion
Divides 
for all Integers 
Iff is Squarefree and
for all Prime Divisors 
of . Carmichael Numberssatisfy this Criterion.
References
Borwein, D.; Borwein, J. M.; Borwein, P. B.; and Girgensohn, R. ``Giuga's Conjecture on Primality.'' Amer. Math. Monthly 103, 40-50, 1996.
- Lozenge
- Lozenge Method
- Lozi Map
- Lp'-Balance Theorem
- L-Polyomino
- L-Series
- L-System
- Lucas Correspondence
- Lucas Correspondence Theorem
- Lucas-Lehmer Residue
- Lucas-Lehmer Test
- Lucas' Married Couples Problem
- Lucas Number
- Lucas Polynomial
- Lucas Polynomial Sequence
- Lucas Pseudoprime
- Lucas Sequence
- Lucas's Theorem
- Lucky Number
- Lucky Number of Euler
- LUCY
- LU Decomposition
- Ludolph's Constant
- Ludwig's Inversion Formula
- Lukács Theorem