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Public Key Cryptography: GCD plays a crucial role in algorithms like RSA, which is widely used for secure data transmission. RSA involves finding large prime numbers, and the GCD is used to ensure that certain key values are co-prime (i.e., their GCD is 1).↵
Digital Signal Processing↵
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Sampling Rates: In audio or video signal processing, different devices may use different sampling rates. GCD is used to find the highest possible common sampling rate, allowing for proper synchronization between devices.↵
Fractions and Ratios
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1. Simplifying Fractions
Time and Frequency Alignment↵
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Synchronization: GCD can be used to align cycles or frequencies in mechanical systems (like gears) or digital clocks. For example, if two events repeat every 15 and 20 minutes, the GCD (5 minutes) gives the interval when both events will occur simultaneously.
GCD is super handy when you need to simplify fractions. By dividing the numerator and denominator by their GCD, you get the fraction in its simplest form.↵
For example, consider the fraction 36/48. The GCD of 36 and 48 is 12, so the fraction simplifies to: 36/48=(36/12)/(48/12)=3/4.↵
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