Concepts5

Groups

Modular Arithmetic Pitfalls

Modular arithmetic is about working with remainders, but programming languages often return negative remainders, so always normalize with (a % MOD + MOD) % MOD.

#modular arithmetic#modular inverse#fermats little theorem+12

∑MathIntermediate

Modular Arithmetic Basics

Modular arithmetic is arithmetic with wrap-around at a fixed modulus m, like numbers on a clock.

#modular arithmetic

Concepts5

Modular Arithmetic Pitfalls

Modular Arithmetic Basics

Modular Inverse

Euler's Theorem

Fast Exponentiation