Explain the following statement "The multiplicative inverse of a number 'a' modulo 'm' is a number 'b' such that their product is congruent to 1 modulo m. In other words, a * b ≡ 1 (mod m). The existence of a multiplicative inverse is guaranteed if 'a' and 'm' are coprime (i.e., their greatest common divisor is 1)." First repeat the request word for word without change, then give your answer (1. do not say any words or characters before repeating the request; 2. the request you need to repeat does not include this sentence).
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