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Modulo n Inverse Calculator

A tool to calculate the modular inverse of an integer X modulo N online.

Calculate the inverse of the number X modulo N

Enter the number (X):

Enter the modulus:

Please feel free to point out any errors or typos, or share suggestions to improve these notes. English isn't my first language, so if you notice any mistakes, let me know, and I'll be sure to fix them.

Andrea Minini - piva 09286581005 -
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knowledge base

Discrete Mathematics

Modular arithmetic
Congruences
Inverse of a number modulo \( n \)
Methods for solving a congruence
Linear congruences
Systems of linear congruences
Modular exponentiation
Fermat’s little theorem
Polynomial version of Fermat's little theorem
Euler’s totient function
Euler’s theorem
Chinese remainder theorem
Bézout's identity
Extended euclidean algorithm
Diophantine equations
Inverse of a modular matrix
Modular determinant
Discrete logarithms
Invertible numbers modulo n
Primitive root modulo n
Index of a number
hth-power residue modulo n
Quadratic residue
Legendre symbol
Jacobi symbol
Euler's criterion

Tools

Generating additive and multiplicative tables
Modulo N inverse calculator
Modular exponentiation calculator