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Which starting number, under one million, produces the longest chain?

The following iterative sequence is defined for the set of positive integers: n → n / 2 ( n is even)

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What is the 10 001st prime number?

By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.

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2023-03-14