Question: consider the equation: 3 x 3 ( mod 5 ) . To solve this equation, we need to find the modular inverse of 3 mod

consider the equation: 3x3(mod5). To solve this equation, we need to find the modular inverse of 3 mod 5.
What condition must apply before we attempt to find the inverse?
Group of answer choices
The GCD(3,5)=5
The GCD(3,5)=3
Both numbers must be primes
The GCD(3,5)=1

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