A congruence is a relationship between two numbers that are equal modulo n. For example, 5 and 11 are congruent modulo 3, as they both have a remainder of 2 when divided by 3.
A congruence is a relationship between two numbers that are equal modulo n. For example, 5 and 11 are congruent modulo 3, as they both have a remainder of 2 when divided by 3.