Glossary math Term Page

modular inverse

the multiplicative inverse modulo `n`

modular-inverse #math#number-theory

Related Concepts

congruence coprime linear congruence Chinese remainder theorem modular arithmetic remainder

Core Idea

modular inverse is the multiplicative inverse modulo n. It usually makes the most sense alongside congruence, coprime, linear congruence.

Why It Matters Here

Mathbong reuses this term across number-theory posts as shared vocabulary.

Posts Mentioning This Concept

[Introduction to Number Theory Series Part 12] Why Can We Reduce Big Numbers in Modular Arithmetic? See why addition, subtraction, multiplication, and powers stay compatible with congruence.[정수론 입문 시리즈 12편] 모듈러 연산에서는 왜 큰 수를 작게 바꿔도 될까? 합동을 바탕으로 모듈러 연산에서 덧셈, 곱셈, 거듭제곱을 안전하게 줄여 계산하는 원리를 정리합니다.[Introduction to Number Theory Series Part 13] When Does a Modular Inverse Exist? Learn why modular division is really an inverse problem and why inverses exist exactly in the coprime case.