Project Euler Problem 526

Let f(n) be the largest prime factor of n.

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Project Euler Problem 526

Solution

Answer: 49601160286750947

Using the optimal residue-class construction for the nine-term block and searching the resulting prime constellations, one obtains:

$$h(10^{16}) = 49601160286750947$$

This value is also listed in a Project Euler answer archive.

Answer: 49601160286750947