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The multiplicative Inverse of 24140 mod 40902 is

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The multiplicative Inverse of 24140 mod 40902 is

(a) 2355

(b) 5343

(c) 3534

(d) Does not exist

This question was posed to me during an online interview.

My doubt is from Number Theory in division Basic Concepts in Number Theory and Finite Fields of Cryptograph & Network Security

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The correct option is (d) Does not exist

The best explanation: The multiplicative Inverse does not exist as GCD (24140, 40902) = 34.

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