Finding the GCD of Large Numbers Using Prime Factorization

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To find the GCD of 22,471 and 3,266, the Euclidean algorithm is recommended instead of prime factorization due to the large size of the numbers. This method involves repeated division to find the GCD efficiently. The user expresses familiarity with prime factorization for smaller numbers but seeks guidance on applying the Euclidean algorithm for larger values. The discussion emphasizes that prime factorization is not necessary for this problem. The solution can be expressed in the form 22,471x + 3,266y once the GCD is determined.
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Homework Statement



Find the gcd of 22,471 and 3,266 and express in the form 22,471x + 3,266y

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The Attempt at a Solution



I know how to get the gcd of easy numbers... using the prime factorization. But how do I do that with numbers of this scale?
 
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Use the Euclidean algorithm. You don't have to factorize them.
 


thank you!
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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