I know how to calculate Modular Multiplicative Inverse. But I am unable to understand the physical meaning (Analytical Meaning/Intuitive Meaning ) of Modular Multiplicative Inverse. For Example
If we have to find the Multiplicative Inverse of 7 mod 5 then we know that it is 3. But If we think analytically and forget about the formula and Congruent type of things and use Basic Mathematics.
Then we get that the Answer is 1/2 because According we have to find the Multiplicative Inverse of 7 mod 5 and 7 mod 5 = 2 and the inverse of 2 is 1/2.
Why there is a big difference between both of these Answer. It may be a silly question but I am highly confused
Is there any difference between Normal Multiplicative Inverse and Modular Multiplicative Inverse?