Carmichael number

In number theory, a Carmichael number is a composite number which satisfies the modular arithmetic congruence relation: for all integers which are relatively prime to .They are named for Robert Carmichael.The Carmichael numbers are the subset K1 of the Knödel numbers. Equivalently, a Carmichael number is a composite number for which for all integers .

Carmichael number

In number theory, a Carmichael number is a composite number which satisfies the modular arithmetic congruence relation: for all integers which are relatively prime to .They are named for Robert Carmichael.The Carmichael numbers are the subset K1 of the Knödel numbers. Equivalently, a Carmichael number is a composite number for which for all integers .