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Inverse modulo p
File ID: 65093

Inverse modulo p
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Inverse modulo p  Description
Description: Very rarely it is necessary to find the multiplicative inverse of a number in the ring of integers modulo p. Thie recipe handles those rare cases. That is, given x, an integer, and p the modulus, we seek a integer x^-1 such that x * x^-1 = 1 mod p. For example 38 is the inverse of 8 modulo 101 since 38 * 8 = 304 = 1 mod 101. The inverse only exists when a and p are relatively prime.

Related: Mod, modulo, Number, Prime, theory

O/S:Windows

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