N Modulo Inverse. For example, let $m = 4$, $a = 2$. This works in any situation where you want to find the multiplicative inverse of $a$ modulo $m$, provided of course that such a thing.

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Learn more about clone urls. Conventionally, the mathematical notation used for inverses is. In number theory and encryption often the inverse is needed under a modular ring. Integer modulo p, p a prime.