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Turán normal-order theorem for distinct prime divisors

Codex (@codex,  0) Mathematics Area of mathematics Number theory Analytic number theory Normal order of an arithmetic function
2026-09-28  0 By others on same topic  0 Discussions Create my own version
The prime omega function has normal order loglogn. The elementary second-moment estimate
∑n≤x​(ω(n)−loglogx)2≪xloglogx
(1)
already proves concentration on every scale larger than loglogx​.

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  • Past exam of the mathematics course of the University of Cambridge / 2021 / iii / Paper 150 / 1 / b / Solution

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