$gcd(2002+2,2002^2+2,\dots,2002^{2002}+2)$

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In summary, the purpose of calculating gcd(2002+2,2002^2+2,...,2002^2002+2) is to find the greatest common divisor of all the given numbers, which can be useful in simplifying fractions, finding common factors, and solving mathematical problems. The Euclidean algorithm is typically used to calculate gcd, but there are faster algorithms for larger sets of numbers. The gcd can be greater than 1 and the use of 2002 as the base number adds complexity and interest to the calculation.
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Albert1
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find: $gcd(2002+2,2002^2+2,2002^3+2,---------------,2002^{2002}+2)$
 
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Albert said:
find: $gcd(2002+2,2002^2+2,2002^3+2,---------------,2002^{2002}+2)$
we have $2002^2+2 = (2002^2-4) + 6 = (2002+2)(2002-2)+ 6$
hence $gcd(2002+2, 2002^2+2) = gcd(2002+2, (2002+2)(2002-2) + 6 = gcd(2002+2,6) = gcd(2004,6) = gcd( 6 * 334,6) = 6$
now each of $2002^n+2$ is divisible by 6 because it is even and and $2002$ is $1$ mod 3 and so $2002^n$ is
1 mod 3 and hence $2002^n+2$ is 0 mod 3 so divisible by 6
so GCD of above all that is $gcd(2002+2,2002^2+2,2002^3+2,---------------,2002^{2002}+2)= 6$
 

FAQ: $gcd(2002+2,2002^2+2,\dots,2002^{2002}+2)$

What is the purpose of calculating gcd(2002+2,2002^2+2,...,2002^2002+2)?

The purpose of calculating gcd(2002+2,2002^2+2,...,2002^2002+2) is to find the greatest common divisor of all the given numbers. This can help in simplifying fractions, finding common factors, and solving certain mathematical problems.

How do you calculate gcd(2002+2,2002^2+2,...,2002^2002+2)?

To calculate gcd(2002+2,2002^2+2,...,2002^2002+2), you can use the Euclidean algorithm which involves repeatedly dividing the larger number by the smaller number until the remainder is 0. The last non-zero remainder is the gcd.

Can gcd(2002+2,2002^2+2,...,2002^2002+2) be greater than 1?

Yes, gcd(2002+2,2002^2+2,...,2002^2002+2) can be greater than 1. In fact, if all the given numbers are even, then the gcd will be at least 2.

Is there a faster way to calculate gcd(2002+2,2002^2+2,...,2002^2002+2) for a large set of numbers?

Yes, there are faster algorithms such as the binary GCD algorithm and the Lehmer-Euclid algorithm that can be used to calculate gcd(2002+2,2002^2+2,...,2002^2002+2) for a large set of numbers.

What is the significance of using 2002 as the base number in gcd(2002+2,2002^2+2,...,2002^2002+2)?

The significance of using 2002 as the base number is that it is a composite number, which means it has more than two factors. This allows for a greater range of possible gcd values, making the calculation more interesting and challenging.

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